msem-instigator

Choose one or both—
• Target creature gets -4/-4 until end of turn.
• Return target creature card with mana value 1 from your graveyard to the battlefield.

{T}: Add {C}.
{T}, Pay 1 life: Add {W}.
{5}{W}, {T}, Sacrifice Swaying Sands: Create three 1/1 white Bird creature tokens with flying. Activate only as a sorcery.

Descended Gorge enters tapped.
{T}: Add {R} or {G}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Other Azra and Demons you control get +1/+1.
As long as you control three or more other Azra and/or Demons, Herald of Tamaak gets +1/+1 and has flying.

{T}: Add {C}.
{T}, Exile two cards from your graveyard: Add {R} or {W}.

Whenever another creature you control enters, put a +1/+1 counter on each creature you control with lesser power or lesser toughness than that creature.

Lionize {2}{U} ({2}{U}, Exile this card from your hand: Put a +1/+1 counter on target creature and it gains the following ability until end of turn. You may cast this card on a later turn from exile.)
Whenever this creature deals combat damage to a player, draw that many cards.

Taifeng Shrine enters tapped.
{T}: Add {W} or {U}.
{W/U}, {T}, Sacrifice Taifeng Shrine: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.

Flying
Whenever Cavern Scourge attacks, you may exile a card from your graveyard. If you do, you gain 3 life.

Flying, vigilance
Exile a creature card from your graveyard: Maligned Scavenger gets +1/+1 until end of turn.

Flying, haste
Arise {4}{R}. This ability costs {1} less to activate for each instant and sorcery card in your graveyard. ({4}{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.)

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Destroy target tapped creature.
3 | Prevent all combat damage that would be dealt this turn.

Flying, haste
Whenever Spawn of Hadak attacks, draw a card, then discard a card.

{1}{R}{G}: Feral Exemplar gets +2/+2 until end of turn. Activate only once each turn.
Ferocious — Whenever a creature you control with power 4 or greater attacks, that creature gets +X/+X until end of turn, where X is its power.

When Forlorned Knight enters, you may sacrifice another creature. If you do, create two 1/1 white Human creature tokens.
Whenever you attack, if another creature died under your control this turn, creatures you control get +1/+1 until end of turn.
Fleeting {W}{B} (You may cast this spell for its fleeting cost. If you do, sacrifice it at the beginning of the next end step.)

Return target creature card from your graveyard to your hand.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

Return target artifact or enchantment card from your graveyard to your hand. You gain life equal to that card's mana value.

Put a +1/+1 counter on target creature you control if it's enchanted or equipped. It deals damage equal to its power to up to one other target creature.

Foretell {X}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
Gain control of target creature with power 2 or less. If this spell was foretold, gain control of target creature with power X or less instead.

Each player who controls a creature with power 3 or less draws a card. Then destroy all creatures.

Choose target attacking or blocking creature. Scry 3, then reveal the top card of your library. Judge Unworthy deals damage equal to that card's mana value to that creature.

Instant and sorcery spells you cast cost {1} less to cast.

When North Ward Settler enters, choose one —
• Create a 1/1 white Dwarf creature token.
• Put a +1/+1 counter on North Ward Settler.

Players can't pay alternative costs to cast spells. (Casting a spell without paying its mana cost is an alternative cost.)

Kahroba Pureblood has trample as long as it has a counter on it.