msem-instigator

Until end of turn, creatures you control get +1/+1 and gain trample and poisonous 1. (Whenever one of those creatures deals combat damage to a player, that player gets a poison counter.)

As an additional cost to cast this spell, sacrifice a creature.
Target creature gains +4/+4 until end of turn.

Exile target artifact or enchantment. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Enchant creature
Enchanted creature and all other creatures with the same name as that creature can't attack or block.

Whenever Leyline Tracer attacks, exile the top card of your library. Until end of turn, you may play that card.
Ascend—{B}, Discard two cards. ({B}, Discard two cards: Exile this creature, then return it to the battlefield transformed. Ascend only as a sorcery.)

Library Specter can't attack unless there are five or more noncreature, nonland cards in your graveyard.

When Life's Harbinger dies, you may put a +1/+1 counter on target creature you control.
{T}: Add {G}.

Enchant creature
Enchanted creature gains +X/+X, where X is your life total.
When enchanted creature dies, shuffle Life's Will into its owner's library.

Pay 2 life: Lifecraft Aberration gains indestructible until end of turn.
Pay 3 life: Lifecraft Aberration gets +1/+1 until end of turn.

Kindle 4—{4}{U}{U} ({4}{U}{U}, Exile this card from your graveyard: Create four 1/1 colorless Elemental creature tokens. Kindle only as a sorcery.)

Reach (This creature can block creatures with flying.)
Whenever Lifespinner Spider blocks or becomes blocked by a creature with flying, you gain 1 life.

Whenever you gain life for the first time each turn, each opponent loses 2 life.

Lightning Strike deals 3 damage to any target.

Flying
If Liguno, Who Transcends All or another permanent you control would be put into a graveyard from the battlefield, exile it instead. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Whenever Little Kibo attacks, you may pay {W}{W}. If you do, transform it.

Flash
Flying
When Living Antimagic enters, counter target spell unless its controller pays {2}.
Spells that target Living Antimagic cost {2} more to cast.

Whenever a land you control enters, create a 3/3 red and green Elemental creature token.

When Logger Recluse enters, you may put a land card from your hand onto the battlefield tapped.
{1}{G}: Logger Recluse gets +3/+0 until end of turn. Activate only once each turn.

{1}, {T}, Sacrifice Looking Glass: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Kindle 1—{1} ({1}, Exile this card from your graveyard: Create a 1/1 colorless Elemental creature token. Kindle only as a sorcery.)

Flying
When Lord Rokai becomes the target of a spell, sacrifice it.
Whenever you cast an instant or sorcery spell, you may pay {2}{U}. If you do, return Lord Rokai from your graveyard to the battlefield.

Flying (This creature can't be blocked except by creatures with flying or reach.)
When Lord of Swarms enters or dies, target creature gets -2/-2 until end of turn.

When Loresprout enters, if you control another creature, draw a card.

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.
Mirage {W/U} (You may cast this spell as though it had flash for its mirage cost. If you do, sacrifice it at the beginning of the next cleanup step.)

Flying
{1}{W}: Target creature with a +1/+1 counter on it gains flying until end of turn.

Activated abilities of nonland permanents cost {2} more to activate.