Whenever you gain life, put that many +1/+1 counters on Ageless Entity.

Kicker 1R (You may pay an additional 1R as you cast this spell.)

Destroy target nonblack creature. It can't be regenerated. If this spell was kicked, Agonizing Demise deals damage equal to that creature's power to the creature's controller.

+1: Target permanent doesn't untap during its controller's next untap step.

?2: Ajani Vengeant deals 3 damage to any target and you gain 3 life.

?7: Destroy all lands target player controls.

At the beginning of your upkeep, you may gain 1 life.

Whenever you gain life, you may put a +1/+1 counter on Ajani's Pridemate.

Equipped creature gets +2/+2 and has trample and lifelink.

Equip 3

Flying, haste

Whenever Blazing Specter deals combat damage to a player, that player discards a card.

When Brackwater Elemental attacks or blocks, sacrifice it at the beginning of the next end step.

Unearth 2U (2U: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Flash

When Briarhorn enters the battlefield, target creature gets +3/+3 until end of turn.

Evoke 1G (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Counter target noncreature spell. Its controller loses 2 life.

Target opponent sacrifices a creature, discards three cards, then loses 5 life. You return a creature card from your graveyard to your hand, draw three cards, then gain 5 life.

Crumbling Necropolis enters the battlefield tapped.

T: Add U, B, or R.

Target player draws two cards.

Flashback¡ª1U, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Whenever Dimir Cutpurse deals combat damage to a player, that player discards a card and you draw a card.

Enchant creature

Enchanted creature gets +3/+3 and has flying.

Whenever enchanted creature deals damage to a player, that player discards two cards.

Whenever another creature enters the battlefield, you gain 1 life.

T, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

First strike

Unearth UBR (UBR: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Flying, first strike

At the beginning of your upkeep, if Firemane Angel is in your graveyard or on the battlefield, you may gain 1 life.

6RRWW: Return Firemane Angel from your graveyard to the battlefield. Activate this ability only during your upkeep.

Flash

When Fleetfoot Panther enters the battlefield, return a green or white creature you control to its owner's hand.

G

Graypelt Refuge enters the battlefield tapped.

When Graypelt Refuge enters the battlefield, you gain 1 life.

T: Add G or W.

Landfall ¡ª Whenever a land enters the battlefield under your control, you may gain 2 life.

Enchant creature

Enchanted creature gets +2/+2 and has flying.

When enchanted creature dies, create a 2/2 white Griffin creature token with flying.

Choose one ¡ª

? Return target permanent to its owner's hand.

? Target creature gets -4/-4 until end of turn.

? Creatures you control get +2/+0 until end of turn.

At the beginning of each opponent's upkeep, if that player has two or fewer cards in hand, Hellfire Mongrel deals 2 damage to that player.

1, T: Tap target artifact, creature, or land.

Haste

Swampcycling 2, mountaincycling 2 (2, Discard this card: Search your library for a Swamp or Mountain card, reveal it, put it into your hand, then shuffle your library.)

2G: Create a 1/1 green Saproling creature token.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Islandcycling 2, swampcycling 2 (2, Discard this card: Search your library for an Island or Swamp card, reveal it, put it into your hand, then shuffle your library.)

Jungle Shrine enters the battlefield tapped.

T: Add R, G, or W.

Kazandu Refuge enters the battlefield tapped.

When Kazandu Refuge enters the battlefield, you gain 1 life.

T: Add R or G.

Kird Ape gets +1/+2 as long as you control a Forest.

Look at the top five cards of your library. You may reveal any number of creature cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in any order.

Lightning Helix deals 3 damage to any target and you gain 3 life.

Loam Lion gets +1/+2 as long as you control a Forest.

When Loxodon Hierarch enters the battlefield, you gain 4 life.

GW, Sacrifice Loxodon Hierarch: Regenerate each creature you control.

Double strike

Sacrifice Morgue Toad: Add UR.

Flying

At the beginning of your upkeep, you lose 1 life.

R

Vigilance

R, T: Target creature can't block this turn.

G, T: Target creature blocks this turn if able.

Choose one ¡ª

? Naya Charm deals 3 damage to target creature.

? Return target card from a graveyard to its owner's hand.

? Tap all creatures target player controls.

+3: Destroy target noncreature permanent.

?2: Gain control of target creature.

?9: Nicol Bolas, Planeswalker deals 7 damage to target player or planeswalker. That player or that planeswalker's controller discards seven cards, then sacrifices seven permanents.

Blue spells and red spells you cast cost 1 less to cast.

1B: Regenerate Nightscape Familiar.

T: Add U, B, or R.

When Ogre Savant enters the battlefield, if U was spent to cast Ogre Savant, return target creature to its owner's hand.

Target player discards a card.

You may have Pride of Lions assign its combat damage as though it weren't blocked.

Choose two ¡ª

? Target player loses X life.

? Return target creature card with converted mana cost X or less from your graveyard to the battlefield.

? Target creature gets -X/-X until end of turn.

? Up to X target creatures gain fear until end of turn. (They can't be blocked except by artifact creatures and/or black creatures.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

1, Sacrifice Qasali Pridemage: Destroy target artifact or enchantment.

Return target permanent to its owner's hand. Then that player discards a card.

Enchant creature

Enchanted creature can't attack or block.

At the beginning of your upkeep, you may gain 1 life.

Return target creature card from a graveyard and target creature on the battlefield to their owners' hands.

Rupture Spire enters the battlefield tapped.

When Rupture Spire enters the battlefield, sacrifice it unless you pay 1.

T: Add one mana of any color.

(T: Add G.)

Sapseep Forest enters the battlefield tapped.

G, T: You gain 1 life. Activate this ability only if you control two or more green permanents.

Whenever you gain life, you may pay 2. If you do, Searing Meditation deals 2 damage to any target.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

When Shriekmaw enters the battlefield, destroy target nonartifact, nonblack creature.

Evoke 1B (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Gain control of target creature. Untap that creature. It gains haste until end of turn. Sacrifice it at the beginning of the next end step.

Whenever Slavering Nulls deals combat damage to a player, if you control a Swamp, you may have that player discard a card.

Counter target noncreature spell.

Whenever Spitemare is dealt damage, it deals that much damage to any target.

When Steamcore Weird enters the battlefield, if R was spent to cast Steamcore Weird, it deals 2 damage to any target.

Flying

When Surveilling Sprite dies, you may draw a card.

B

Target player gains 8 life.

Basic landcycling 1G (1G, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.)

When Sylvan Ranger enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.

T, Sacrifice Terramorphic Expanse: Search your library for a basic land card and put it onto the battlefield tapped. Then shuffle your library.

Until end of turn, creatures you control get +5/+5 and gain first strike, trample, and lifelink.

Counter target spell. Its controller loses 3 life.

Return target creature to its owner's hand. Its controller loses 1 life.

T: Add C.

2GW, T: Create a 1/1 green Saproling creature token.

Wild Nacatl gets +1/+1 as long as you control a Mountain.

Wild Nacatl gets +1/+1 as long as you control a Plains.