msem-instigator

Flip a coin until you lose a flip or choose to stop flipping. Exile the top X cards of each player's library, where X is 1 plus the number of flips you won. You may play those cards until the end of your next turn, and you may spend mana as though it were mana of any color to cast those spells.

When Blessing from Wings on High enters, you may search your library for an Angel or Nephilim card, reveal it, put it into your hand, then shuffle.
Creatures you control get +1/+0.

Engorge (As this enters, mill three cards, then exile a card from among the milled cards.)
When Bloodchill Risen enters, if it engorged an instant card, return target creature to its owner's hand.

Spitfire deals 2 damage to target creature. Up to one target creature you control gets +2/+0 until end of turn.

Vigilance
Whenever Darutu, God of Bounty enters or attacks, you may put a +1/+1 counter on another target Ox you control.
Enchantment spells you cast have harness. Only Oxen can be tapped to harness those spells. (You may tap an Ox you control as you cast that spell. If you do, reduce that spell's mana cost by that Ox's power.)

Bigroot Valley enters tapped.
{T}: Add {R} or {G}.
{1}, {T}: Add one mana of any color.

When Rootbound Awakener enters, create a green Aura enchantment token named Vivification attached to target creature or land. The token has enchant creature or land and “Enchanted permanent is a creature with base power and toughness 5/5 in addition to its other types.”

You may play an additional land on each of your turns.
{1}{B}{G}, Sacrifice a land: Draw a card.

First strike
Art of war — At the beginning of your end step, if Teikoku Cavalry dealt damage to an opponent this turn, put a +1/+1 counter on it.

Breach (Whenever this deals combat damage to a player, you may have it become an Aura Curse until your next turn. Attach it to that player.)
At the beginning of your end step, if an opponent is cursed, surveil 2.

Hexproof
When Elusive Devout enters, choose one —
• Put a +1/+1 counter on Elusive Devout.
• Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

Flash
Spirited (When this creature enters, you may activate one of its activated abilities without paying its cost.)
{1}: Remove target attacking creature you control from combat and untap it.

Destroy target artifact. Smoldering Pages deals damage to that artifact's controller equal to that artifact's mana value.

Concord — When Dolphin Rider enters, if there are four or more card types among permanents you control, you gain 5 life.

Discard a card, then draw a card.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

Crumbling Vestige enters tapped.
When Crumbling Vestige enters, add one mana of any color.
{T}: Add {C}.

Enchant creature
Enchanted creature has erratic. (When that creature dies, reveal the top four cards of your library. Put a creature card that costs less than this revealed this way onto the battlefield and the rest on the bottom of your library in any order.)
When enchanted creature dies, return Eternal Recurrence to its owner's hand.

Put target creature or planeswalker into its owner's library third from the top. Its controller creates a 1/1 white Spirit creature token with flying.

Players can't get counters.
Counters can't be put on permanents.

Prowess
Whenever Steamwalker attacks, you may discard a card. If you do, draw a card, then catalyze. (The next spell you cast this turn costs {1} less to cast.)

Enchant creature
Enchanted creature can't attack or block.
{2}{U}: Return Whiplash and enchanted creature to their owners' hands.

Choose one —
• Return target artifact or enchantment card from your graveyard to your hand.
• Return target creature card with mana value 2 or less from your graveyard to your hand.
Cycling {2} ({2}, Discard this card: Draw a card.)

Indestructible
Legendary permanents you control have indestructible.

As long as your deck contains only blue and colorless cards, your minimum deck size is reduced by eight.

Mill three cards, then you may return a land card or a Shaman card from your graveyard to your hand.