First strike, vigilance, lifelink
Aura and Equipment spells you cast cost less to cast.

+1: Reveal the top four cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard.
0: Put any number of land cards from your hand onto the battlefield tapped.
−3: Create a green Treefolk creature token with reach and "This token's power and toughness are each equal to the number of lands you control."
−8: Return all permanent cards from your graveyard to your hand. You get an emblem with "You have no maximum hand size."

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Flash
Reach
When this creature enters, it deals 2 damage to each creature with flying and each player.
Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Search your library for a snow permanent card, a legendary card, or a Saga card, reveal it, put it into your hand, then shuffle. You gain 1 life for each spent to cast this spell. ( is mana from a snow source.)

Haste
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Trample
Activated abilities of artifact tokens you control cost less to activate.
When Mutagen Man enters, create X Mutagen tokens. (They're artifacts with ", , Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.")

Search your library for an Arcane card, reveal that card, put it into your hand, then shuffle.

Flash
Flying
Whenever Malcolm deals combat damage to a player, put a chorus counter on it. Draw a card, then discard a card. If there are four or more chorus counters on Malcolm, you may cast the discarded card without paying its mana cost.

: Regenerate this creature.
Sacrifice this creature: Target player discards two cards. Activate only during your upkeep.

Whenever you cast an instant or sorcery spell with mana value greater than the number of experience counters you have, you get an experience counter.
Instant and sorcery spells you cast cost less to cast for each experience counter you have.

This spell costs less to cast if an opponent controls no basic lands.
Destroy target creature.

Gríma can't be blocked.
Whenever Gríma deals combat damage to a player, that player exiles cards from the top of their library until they exile an instant or sorcery card. You may cast that card without paying its mana cost. Then that player puts the exiled cards that weren't cast this way on the bottom of their library in a random order.

Return all nonland permanents to their owners' hands. If you return four or more nontoken permanents you control this way, you may put a permanent card from your hand onto the battlefield.

At the beginning of your upkeep, surveil 1. Then if there are three or more creature cards in your graveyard, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Trample
When this creature enters, sacrifice it unless you pay for each card in your hand.

Whenever you cast an instant or sorcery spell, flip a coin. If you lose the flip, return that spell to its owner's hand. If you win the flip, copy that spell, and you may choose new targets for the copy.
Partner (You can have two commanders if both have partner.)

This spell costs less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.

Creatures you control get +1/+1.