msem-instigator

Defender, flying
Whenever you cast a noncreature spell, Dragon Initiate gets +2/+0 and loses defender until end of turn.

Winnow (Damage dealt to this creature also causes you to lose that much life.)
Whenever Vicious Slasher attacks, target creature gains winnow until end of turn.

Create a 3/3 white Construct enchantment creature token.

Haste
At the beginning of combat on your turn, target creature or Vehicle you control gets +2/+0 until end of turn.

Wildfire Elemental has frenzy 4 as long as you control no other creatures. (Whenever this creature attacks and isn't blocked, it gets +4/+0 until end of turn.)
Wildfire Elemental has frenzy 4 as long as you have no cards in hand.

When Embodiment of Abundance enters, choose one —
• Search your library for up to X basic land cards, where X is the number of lands you control, and put them onto the battlefield tapped. Then shuffle.
• Create a 1/1 green Elf Druid creature token for each creature you control.

Civilized — Adorned Naga gets +2/+0 and has menace as long as you control an artifact, a creature, and an enchantment.

Haste
Augmented — At the beginning of combat on your turn, if you've spent {W}{U}{B}{R}{G} to cast spells this turn, gain control of target nonland permanent until end of turn. Untap it. It gains haste until end of turn.

Put two +1/+1 counters on target creature. Untap that creature.

Exile target nonland permanent. Create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)

Concord — {T}: Tap target nonland permanent. Activate only if there are four or more card types among permanents you control.

Gleaming Hot Springs enters tapped unless you control a Mountain.
{T}: Add {W} or {U}.

Target opponent sacrifices a creature with the greatest power among creatures that player controls.
Fabled {3}{B}{B} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that player.)

Return up to three target land cards from your graveyard to your hand.
Coalesce {6}{G} (You may cast this from your graveyard for {6}{G}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

You can't draw cards.
{2}{R}: Exile the top card of your library. You may play it this turn.

You may tap or untap target nonland permanent.
Catalyze. (The next spell you cast this turn costs {1} less to cast.)

Enchant creature
Enchanted creature must be blocked if able.

Enchant land
Whenever enchanted land is tapped for mana, its controller adds {G}.
{G}, Sacrifice Sleeping Dryads: Draw a card.

You control equipped creature.
Equipped creature has hexproof and can't attack or block.
{3}: Attach Aetherite Shackles to target creature. Activate only as a sorcery.

Flying
Other creatures get -1/-1.
Whenever Pan Long enters or deals combat damage to a player, return to the battlefield under your control target creature card from a graveyard that was put there from the battlefield this turn.

You may cast this spell as though it had flash if you pay an additional {1} to cast it.

When Form of the Sunbird enters, it deals 4 damage to each creature. Your life total becomes 4.
If you would lose the game, instead transform Form of the Sunbird.

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Attacking creatures get -3/-0 until end of turn.
3 | Thundering Wrath deals 1 damage to each of those creatures.

When Canopy Ratstalker enters, look at the top three cards of your library. You may reveal a land card from among them and put it into your hand. Put the rest on the bottom of your library in any order.