msem-instigator

When Scaleshredder enters, you may have it consume. If you do, reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield and the rest on the bottom of your library in a random order. (To consume, sacrifice another creature or exile a creature card from your graveyard.)

(As an Encounter enters, choose an opponent to protect it. You and others can attack it. When defense counters are removed, create a 0/0 Army token if you don't control one, then put that many +1/+1 counters on a Army you control.)
When Settling of Danaj enters, put a +1/+1 counter on each creature you control.

Haste
At the beginning of each end step, put a +1/+1 counter on Rahstahde's Swiftspear if you cast a noncreature spell this turn.
Surpass {5}{R} ({5}{R}: Transform this creature. This costs {1} less to activate for each counter on it. Activate only as a sorcery.)

Whenever another creature you control enters, you may pay {2}. If you do, judge that creature. (Honor it by putting a +1/+1 counter on it or condemn it by sacrificing it to draw a card.)

Enchant creature
When Awash in Despair enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Vulpine Bluffs enters tapped.
{T}: Add {R} or {W}.
{1}{R}{W}: Until end of turn, Vulpine Bluffs becomes a Fox creature with double strike in addition to its other types.
Scavenge {R}{W}

Creatures can't attack you or planeswalkers you control unless their controller pays {X} for each of those creatures, where X is the number of attacking creatures.

Flying
Prophecy {0} (Once each turn, you may exile a card with prophecy as you reveal it. When you do, you may cast it for its prophecy cost as long as it's exiled.)

{1}{R}: Roaring Dracowyrm gets +2/+0 until end of turn. Activate only once each turn.

Flying
Spells you cast from anywhere other than your hand cost {2} less to cast.
Spells your opponents cast from anywhere other than their hand cost {2} more to cast.

When Smashing Brute enters, target nonbasic permanent loses all abilities until your next turn.
Foresight — Whenever you draw your second card each turn, you may exile Smashing Brute. If you do, return it to the battlefield.

Enchant permanent
Enchanted permanent loses all abilities except for mana abilities and has no name.

Whenever a creature you control enters, put a devotion counter on Monument of the Masses.
At the beginning of your upkeep, if Monument of the Masses has thirty-five or more devotion counters on it, you win the game.

Vigilance, trample
Each creature you control can't have power less than its toughness. (If it would have less, it has as much as its toughness instead.)
Each creature your opponents control can't have toughness greater than its power.

Attacking creatures get +2/+0 and gain first strike until end of turn.

When Spirit of the Sands enters, if you cast it, target opponent gains control of it.
At the beginning of your end step, draw three cards, then discard two cards.

Discard a card, then return up to two creature cards from your graveyard to your hand.

For any number of target spells or abilities your opponents control, counter it unless its controller pays {4}.

{T}: Add {C}. You gain 1 life.
Pristine Frame gets +2/+2 and has flying as long as you have 25 or more life.

Cliffside Entrance enters tapped unless you have 15 or less life.
{T}: Add {R} or {W}.

Whenever Melodious Musician attacks, tap target creature an opponent controls.

At the beginning of the next end step, create X 1/1 white Spirit creature tokens with flying, where X is the number of creatures that died this turn.
Reconstruct {2}{W}{B} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)

Choose one —
• Qi-Long Gust deals 3 damage to any target.
• You and permanents you control gain hexproof until end of turn.

{T}: Add one mana of any color.

{3}, {T}: Put a +1/+1 counter on target creature. This ability costs {3} less to activate if you've sacrificed a permanent this turn. Active only as a sorcery.