Menace
Swampcycling {2}

Draw four cards. You may put up to two land cards from your hand onto the battlefield tapped.
Cycling {G/U}

This spell costs {4} less to cast if each of its targets are owned by different players.
Return up to two target nonland permanents to their owners' hands.
Cycling {2}

This spell can't be countered.
First strike, haste
Whenever an opponent casts a spell during your turn, End of Mutations deals 5 damage to them.

When this creature enters or leaves the battlefield, exchange your graveyard and library, then shuffle.
Whenever a creature dies, draw a card.

Flash
Vigilance
Whenever Exuberant Caprisaur attacks or blocks, you gain 2 life. Then if your life total is greater than 20, put two +1/+1 counters on Exuberant Caprisaur.

Enchant creature
When Fable of Tooth and Fur enters, create three 2/2 green Wolf creature tokens.
Enchanted creature gets +1/+1 for each creature you control and gains trample.

Trample
Forestcycling {2}

Menace, deathtouch
When Furies of the Natural Order enters, bless any number of target players.

Trample
Damned — Whenever this creature enters or attacks, if you've sacrificed a permanent this turn, this creature deals 3 damage to any target and you gain 3 life.

Damned — This spell costs {1} less to cast for each permanent you've sacrificed this turn.
Whenever you sacrifice a permanent, this creature deals 2 damage to target opponent unless they exile a permanent they control. You may play cards exiled this way for as long as they remain exiled, and you may spend mana of any type to cast them.

Revered
Flying
If this creature would deal damage to a permanent or player, it deals double that damage instead.

Whenever a creature you control attacks alone, double its power and toughness until end of turn.

When Hoenn Champion enters, create a creature token for each of the following characteristics.
• 3/3 white and black Bird with flying, vigilance, and haste.
• 2/4 red Bird Warrior with double strike, vigilance, and haste.
No more than two creatures can attack each combat. No more than two creatures can block each combat.

Trample
When Hunger's Door enters, you may return target Aura card from your graveyard to the battlefield attached to Hunger's Door.

Opponents can't cast more than one spell each turn.
[+1]: Create a 3/1 white Knight creature token with “As long as it's your turn, this creature has indestructible.”
[–X]: Return a permanent card with mana value X from your graveyard to the battlefield.
[–4]: If you controlled a creature as you activated this ability, you may destroy all creatures. You may do the same for artifacts and enchantments.

Flying
Whenever you cast a spell from exile, this creature deals damage equal to that spell's mana value to any target.

Revered
Whenever this creature attacks, creatures you control get +1/+0 until end of turn.

Exile target creature. Create a token that's a copy of it except it's a Ruin artifact instead of its other types and it has spellcharge X, where X is its mana value.

Exalted
When this creature enters, exile target creature an opponent controls until this creature leaves the battlefield.

King of Currents can't attack unless there are six or more cards in your graveyard.
Surface {4}{U}{U}

Flying
When Malicious Skycleaver enters, pay any amount of life. It deals that much damage to each other creature.
Cybersoul {7}{B}{B}

Reach
Surface {4}{G}{G}

Flying
Whenever Molten Slagmaw enters or attacks, each opponent sacrifices an artifact or nonbasic land.

When this creature enters, choose one —
• Target creature gets +1/+1 until end of turn for each creature and/or enchantment card in your graveyard.
• Target creature gets -1/-1 until end of turn for each creature and/or enchantment card in your graveyard.