msem-instigator

{1}, {T}: Exile target card from a graveyard. Scry 1.
{T}, Exile Soul Gate: Exile all graveyards.

Bwema, the Ruthless enters with your choice of two different counters on it from among menace, first strike, vigilance, and lifelink.

Frontier Base enters tapped unless you have 15 or less life.
{T}: Add {G} or {U}.

Sacrifice Devoted Dancer: Target creature gains indestructible until end of turn. If it's your turn, shuffle Devoted Dancer into its owner's library.

Put two +1/+1 counters on target creature you control. When you do, it deals damage equal to its power to up to one target creature with flying.

Double the number of each kind of counter on target creature you control.

Enchant creature
When Fists of Ironwood enters, create two 1/1 green Saproling creature tokens.
Enchanted creature has trample.

Draw three cards, then discard two cards unless you discard a multicolored card.

Flying
Crew 2 (Tap any number of creatures you control with total power 2 or greater: This Vehicle becomes an artifact creature until end of turn.)

Target creature gets -2/-2 until end of turn. If you control two or more Deserts, destroy that creature instead.

Each player discards their hand. Draw up to two hands of seven cards. Shuffle all but one of your hands into your library. Each other player draws seven cards.

Vigilance
Seawise Swain gets +1/+1 as long as you control an artifact.
Seawise Swain gets +1/+1 as long as you control an enchantment.

As an additional cost to cast Scorched-Earth Defence, reappropriate X times. (To reappropriate, exile exactly two cards from your hand and/or graveyard.)
Scorched-Earth Defence deals X damage to each creature and each planeswalker.

When Kula's Disciple dies, put it on the bottom of its owner's library.

As an additional cost to cast this spell, discard a nonland card.
Draw two cards.

Captain Fina Redtail can't be blocked as long as you control another attacking Pirate.
Whenever Captain Fina Redtail deals combat damage to a player, you may pay {2}. If you do, create a 2/1 black and red Cat Pirate creature token with menace.

Whenever a creature attacks you, tap that creature. It doesn't untap during its controller's next untap step.

Look at the top four cards of your library. You may reveal a permanent card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Ferocious — If you control a creature with power 4 or greater, you may cast Dragon Grip as though it had flash. (You may cast it any time you could cast an instant.)
Enchant creature
Enchanted creature gets +2/+0 and has first strike.

As long as you control three or more creatures with the same name, Scouts and Wizards you control can't be blocked.
A deck can have any number of cards named Ch'aska Walla Chasqui.

Whenever another creature you control enters, put a +1/+1 counter on it.
Whenever Rilken Preserver attacks, you may exile target nonland permanent you control, then return it to the battlefield under your control.

Whenever Voracious Spawn enters or attacks, exile up to one target card from a graveyard. If you exile a permanent card, put a +1/+1 counter on Voracious Spawn. If you exile a nonpermanent card, you gain 1 life.

Bloodprice {U} (You may cast this card by sacrificing a creature and paying its bloodprice.)
Counter target spell unless its controller pays {4}.

Once each turn, when you foretell a card or cast a foretold spell, you may create a tapped Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

At the beginning of your upkeep, you gain 1 life for each color among permanents you control.
{W}{U}{B}{R}{G}, Sacrifice Sartha's Studies: Double your life total.