Return six target nonland permanents to their owners' hands.

Flash
Flying
When Angel of the Dire Hour enters the battlefield, if you cast it from your hand, exile all attacking creatures.

Trample
Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

: Bellows Lizard gets +1/+0 until end of turn.

Devoid (This card has no color.)
When Birthing Hulk enters the battlefield, create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add ." ( represents colorless mana.)
: Regenerate Birthing Hulk.

Flash (You may cast this spell any time you could cast an instant.)
When Bounding Krasis enters the battlefield, you may tap or untap target creature.

, Sacrifice Caustic Caterpillar: Destroy target artifact or enchantment.

Whenever you draw a card, put a +1/+1 counter on Chasm Skulker.
When Chasm Skulker dies, create X 1/1 blue Squid creature tokens with islandwalk, where X is the number of +1/+1 counters on Chasm Skulker. (They can't be blocked as long as defending player controls an Island.)

Reach (This creature can block creatures with flying.)
Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Enchant player
Whenever a creature attacks enchanted player, put a +1/+1 counter on it.

Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Until end of turn, target creature you control becomes a blue Dragon Illusion with base power and toughness 4/4, loses all abilities, and gains flying.

At the beginning of your upkeep, if an opponent controls three or more creatures, sacrifice Defense of the Heart, search your library for up to two creature cards, and put those cards onto the battlefield. Then shuffle your library.

When you cast this spell, create a 10/10 colorless Eldrazi creature token.

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. If you control a Warrior, that player loses 2 life.

Defender
When Dragon Egg dies, create a 2/2 red Dragon creature token with flying and ": This creature gets +1/+0 until end of turn."

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Remove two +1/+1 counters from Experiment One: Regenerate Experiment One.

Untap all creatures you control. They gain flying and double strike until end of turn.

, Sacrifice Font of Fertility: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

, , Sacrifice Gem of Becoming: Search your library for an Island card, a Swamp card, and a Mountain card. Reveal those cards and put them into your hand. Then shuffle your library.