msem-instigator

Indestructible
Whenever this creature enters or transforms into Mahara, recruit. (Create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)
At the beginning of your end step, if you control four or more creatures, transform Mahara.

Rhapsody {4}{R}{W} (Pay {4}{R}{W} to cast this as a 4/4, or as a sorcery to make it become a 4/4.)
Lifelink, haste

Vigilance
You may look at the top card of your library any time.
Whenever you cast a creature spell from your hand, you may cast the top card of your library without paying its mana cost if it's a creature card with lesser mana value.

Flying
Whenever you cast a spell, Gilded Hawk gets +1/+1 until end of turn for each of that spell's colors.

{T}, Pay 1 life: Add {W} or {B}.
{2}, {T}, Sacrifice Royal Hospital and another permanent: Draw a card. Activate only during your turn.

Instant and sorcery spells your opponents cast cost {1} more to cast.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, draw a card.
At the beginning of your end step, if you have four or more cards in hand, transform Rahstahde.

{2}: Equipped creature phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)
Equipped creature can't be blocked except by Rogues and is a Rogue in addition to its other types.
Equip {1}

Look at the top eight cards of your library. You may put a creature card from among them onto the battlefield and exile an instant or sorcery card from among them. Put the rest on the bottom of your library in a random order. As long as that creature is on the battlefield, whenever it deals combat damage to a player, copy the exiled card and you may cast the copy without paying its mana cost.

When Faulty Lock enters or is put into a graveyard from the battlefield, choose a creature you control. Whenever that creature deals combat damage to a player this turn, draw a card.
{2}{U}: Sacrifice Faulty Lock. Activate only as a sorcery.

Menace, haste

({T}: Add {B}, {G}, or {U}.)
Verdant Dominion enters tapped.

When Overconfident Batter dies, if it's enchanted or you cast a spell that targeted it this turn, you gain 3 life.

Play with the top card of your library revealed.
You may cast creature spells from the top of your library.
You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for creature spells you cast.

{T}: Add {W}.
{W}, {T}: Target creature gains vigilance until end of turn.

Enchant creature
Enchanted creature attacks each combat if able.
At the beginning of your upkeep, Eternal Rage deals 2 damage to enchanted creature's controller.

{1}{R}: Crashcaller Nereid gets +1/+0 and gains trample until end of turn.

Stinging Swordfish has first strike as long as it's attacking.
When Stinging Swordfish dies, create an Equipment enchantment artifact token named Fish Sword with “Equipped creature gets +3/+1,” “Equipped creature has first strike as long as it's attacking,” and equip {2}. You may attach that token to a creature you control.

Haste, prowess
Whenever Kamito Warcaster attacks, you may pay {2}{R}. If you do, create a token that's a copy of another target creature you control and that's tapped and attacking. It's a colorless Spirit in addition to its other types. Exile that token at end of combat.

Vigilance
Whenever Sibling of All Elements attacks, it gains flying until end of turn if you control a creature with flying. The same is true for first strike, double strike, deathtouch, indestructible, lifelink, menace, and trample.

Reverberate—Sacrifice a Swamp. (When you cast this spell, copy it if you paid its reverberate cost.)
All creatures get -2/-2 until end of turn.

Flying
Whenever a player shuffles their library, Steamquiver Strix deals 2 damage to that player.

Enspirit (As you cast this spell, you may exile a nonenchantment creature you control until this leaves the battlefield or fails to resolve. Reduce this spell's cost by the exiled card's mana value.)
Tenacious Brawler enters with X +1/+1 counters on it.

Haste
{R}, Sacrifice Deepstone Operative: Destroy target artifact.

Choose one —
• Target permanent gains indestructible and lifelink until end of turn.
• Exile target enchantment with mana value 3 or less.