When Aether Hub enters the battlefield, you get (an energy counter).

: Add .

, Pay : Add one mana of any color.

Target creature gets -4/-0 until end of turn.

Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

You may have Body Double enter the battlefield as a copy of any creature card in a graveyard.

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

Enchant creature

When Bubble Snare enters the battlefield, if it was kicked, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

, , Sacrifice a creature: You gain 4 life.

, , Sacrifice a creature named Festering Newt: Each opponent loses 4 life. You gain life equal to the life lost this way.

When Burning-Eye Zubera dies, if 4 or more damage was dealt to it this turn, Burning-Eye Zubera deals 3 damage to any target.

Whenever Chub Toad blocks or becomes blocked, it gets +2/+2 until end of turn.

Enchant creature

Enchanted creature gets +1/+0.

Sacrifice Crackling Club: It deals 1 damage to target creature.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Lifelink

Whenever this creature mutates, create two 1/1 white Cat creature tokens with lifelink.

, : This turn, when target creature you control attacks and isn't blocked, it assigns no combat damage this turn and you put a cube counter on Delif's Cube.

, Remove a cube counter from Delif's Cube: Regenerate target creature.

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

Choose another player. Double Deal deals 3 damage to that player. At the beginning of the first upkeep in your next game with that player, Double Deal deals 3 damage to the player.

Flying

When Double Header enters the battlefield, you may return target permanent with a two-word name to its owner's hand.

Counter up to two target spells.

Choose another player. You draw two cards. At the beginning of the first upkeep in your next game with that player, you draw two cards.

When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

, : Double the amount of each type of unspent mana you have.

Doubtless One's power and toughness are each equal to the number of Clerics on the battlefield.

Whenever Doubtless One deals damage, you gain that much life.

Enchant creature

Enchanted creature gets +2/+2, has first strike, and is a Knight in addition to its other types. (It deals combat damage before creatures without first strike.)

When Ember-Fist Zubera dies, it deals damage to any target equal to the number of Zubera that died this turn.

At the beginning of your end step, if you control a creature with power 5 or greater, you may have Exuberant Firestoker deal 2 damage to target player or planeswalker.

: Add .

Sacrifice Felidar Cub: Destroy target enchantment.

If damage would be dealt to you, put that many depletion counters on Force Bubble instead.

When there are four or more depletion counters on Force Bubble, sacrifice it.

At the beginning of each end step, remove all depletion counters from Force Bubble.

Tap an untapped creature you control: Tap target artifact or creature.

Flying

Sacrifice Gustrider Exuberant: Creatures you control with power 5 or greater gain flying until end of turn.

Vigilance (Attacking doesn't cause this creature to tap.)

When you speak in non-rhyming sentences, sacrifice I'm Rubber, You're Glue.

Say "I'm rubber, you're glue. Everything bounces off me and sticks to you": Change the target of target spell or ability that targets only you.

Exile target creature. That creature's controller creates a 3/3 green Frog Lizard creature token.

: Add one mana of any type that a land you control could produce. If Incubation Druid has a +1/+1 counter on it, add three mana of that type instead.

: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)

Enchant artifact

Enchanted artifact doesn't untap during its controller's untap step.

, , Discard a card: Create a token that's a copy of another target creature you control. It gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step. Activate only as a sorcery.

Blitz (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

At the beginning of combat on your turn, you may pay . If you do, support 2. (Put a +1/+1 counter on each of up to two other target creatures.)

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

When you play a card, sacrifice Juju Bubble.

: You gain 1 life.

Enchant creature

Enchanted creature can't attack or block, and its activated abilities can't be activated.

, Return Krasis Incubation to its owner's hand: Put two +1/+1 counters on enchanted creature.

, , Sacrifice Lodestone Bauble: Put up to four target basic land cards from a player's graveyard on top of their library in any order. That player draws a card at the beginning of the next turn's upkeep.

Menace

Lieutenant — At the beginning of combat on your turn, if you control your commander, each opponent loses 3 life.

, Sacrifice Mishra's Bauble: Look at the top card of target player's library. Draw a card at the beginning of the next turn's upkeep.

Flash

When Muck Drubb enters the battlefield, change the target of target spell that targets only a single creature to Muck Drubb.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Flash

Enchant creature

Enchanted creature gets -2/-0 and loses all abilities. (Mutating onto the creature won't give it new abilities. It can gain abilities in other ways.)

As this creature transforms into Olag, Ludevic's Hubris, it becomes a copy of a creature card exiled with it, except its name is Olag, Ludevic's Hubris, it's 4/4, and it's a legendary blue and black Zombie in addition to its other colors and types. Put a number of +1/+1 counters on Olag equal to the number of creature cards exiled with it.

When Oubliette enters the battlefield, target creature phases out until Oubliette leaves the battlefield. Tap that creature as it phases in this way. (Auras and Equipment phase out with it. While permanents are phased out, they're treated as though they don't exist.)

Enchant creature

All creatures attack enchanted creature's controller each combat if able.

When enchanted creature dies, draw a card.

Vigilance

As long as Raksha Golden Cub is equipped, Cat creatures you control get +2/+2 and have double strike.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

If a land is tapped for mana, it produces colorless mana instead of any other type.

Aftermath (Cast this spell only from your graveyard. Then exile it.)

Up to three target lands don't untap during their controller's next untap step.

Reach

When Rubblebelt Boar enters the battlefield, target creature gets +2/+0 until end of turn.

Whenever Rubblebelt Raiders attacks, put a +1/+1 counter on it for each attacking creature you control.