msem-instigator

When Condemned Cavalier enters, create a white and black Aura Curse enchantment token named Profane March attached to target player. The token has enchant player and “Whenever a creature enchanted player controls attacks, that player loses 1 life and defending player gains 1 life.”

{1}, Sacrifice Wayfarer's Amulet: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
{3}, Sacrifice Wayfarer's Amulet: Search your library for a riddle card, reveal it, put it into your hand, then shuffle.

Whenever a creature dies, you may pay 1 life. If you do, draw a card.

Flying
Whenever you draw a card, put a +1/+1 counter on Acolyte of Life.
Remove two counters from Acolyte of Life: It phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)

Target creature gets +1/+1 and gains first strike until end of turn.
Fabled {3}{W} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that creature.)

Flash
Lifelink
When this creature enters, counter target spell unless its controller pays {1} or 3 life.

Advance {2}{R} (Cast this for {2}{R} to advance it as it enters. {2}{R}: Advance this as a sorcery.)
Haste
Whenever Soulblade Warrior advances, it gets +2/+0 until end of turn.

Primal {G} (During your turn, you may cast this spell for {G} instead of playing a land.)
When Charging Nymph enters, it gets +2/+0 and gains haste until end of turn.

{T}: Add {C}.
{1}, {T}: Add one mana of any color.

At the beginning of your end step, mill two cards and you lose 2 life.
Arise {3}{B}{R} ({3}{B}{R}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)

Indestructible
When this creature transforms into Ninhasir, God of Creation, discard all the cards in your hand, then draw that many cards plus one.
Whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy.

When Silver Gardener enters, create a 1/1 green Saproling creature token.
Unveil {2}{G}{W} ({2}{G}{W}: Transform this. Unveil only as a sorcery.)

Flash
When Dehmi, Origin Seeker enters, counter target spell an opponent controls unless that spell's controller has you create X 1/1 red Elemental creature tokens, where X is that spell's mana value.

Flying
Spirited (When this creature enters, you may activate one of its activated abilities without paying its cost.)
{3}{U}: Target creature you control gains flying until end of turn.

Tithe (As you cast this spell, you may tap three artifacts and/or creatures you control.)
Any opponent may have you draw three cards. If they don't, Burning Revelations deals 5 damage to them. Then if you cast this spell and its tithe was paid, copy it twice.

Flying
Whenever Revived Pterosaur deals combat damage to an opponent, that player discards a card.
{4}{B}{B}, Discard two cards: Return Revived Pterosaur from your graveyard to the battlefield tapped.

[+1]: Tap up to one target creature. It doesn't untap during its controller's next untap step.
[–2]: Exile target card from a graveyard. Create a 2/2 blue and black Elemental creature token.
[–7]: You get an emblem with “You may play cards from exile.”

{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{2}, {T}, Sacrifice Great Beyond: Draw a card.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When Hinasa Mystic enters, draw a card.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)

Destroy up to one target artifact, enchantment, or creature with flying. Create two 1/1 green Saproling creature tokens.

Artifact and enchantment spells you cast cost {1} less to cast.
Whenever Risti Salvager attacks, rediscover an artifact or enchantment card. (Look at the top card of your library. You may reveal it and put it into your hand if it's an artifact or enchantment card. Otherwise, put it back or into your graveyard.)

Look at the top four cards of your library. You may put a land card from among them onto the battlefield tapped, then put the rest into your graveyard.

Lonely Aerie enters tapped.
{T}: Add {W} or {U}.
{W}{U}: Until end of turn, Lonely Aerie becomes a Bird creature with flying in addition to its other types.
Scavenge {W}{U}

Whenever you cast a spell during an opponent's turn, creatures you control get +0/+1 until end of turn.