msem-instigator

When Rotting Sunseeker dies, return target creature card with power 2 or less from your graveyard to your hand.

Creatures you control get +1/+1 until end of turn. If you control a Rebel, draw a card.

When Roving Chaplains enters the battlefield, create two 1/1 white Spirit creature tokens with flying.
{W}, Tap another untapped creature you control: Tap target nonland permanent an opponent controls.

Whenever a permanent you control leaves the battlefield, put a +1/+1 counter on Royal Doctor.
When Royal Doctor leaves the battlefield, you gain life equal to its power.

Ward {2}
Foresight — Whenever you draw your second card each turn, Royal Falconer gains flying until end of turn.

First strike
Prevent all noncombat damage that would be dealt to Royal Knight.

Whenever you cast a cryptic spell, creatures you control get +1/+1 until end of turn. (Artifacts, enchantments, and modal spells are cryptic.)

You have hexproof.
Creatures you don't control have base power and toughness 1/1 and lose all abilities.
Nonbasic lands you don't control don't untap during their controller's untap step.

When Ruler of Cities enters the battlefield, you may search your library for an Aura that could enchant a land you control, reveal it, put it into your hand, then shuffle.
Whenever an Aura becomes attached to a land you control, you gain 2 life.

Target creature phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)

When Runaway Princess dies, audition for white. (Create a 1/1 Construct Actor creature token, a Scout Role giving 2/3 and vigilance, or a Cleric Role giving 2/2 and lifelink. Roles replace older ones.)

Whenever you cast a noncreature spell, Runeclad Seeker gets +1/+1 until end of turn. If that spell was an Aura or Equipment spell, put a +1/+1 counter on Runeclad Seeker instead.

Whenever you make first contact, Runic Enforcer gains lifelink until end of turn. (You make first contact the first time each turn you cast a spell with a name not in your graveyard or control already.)

Defender (This creature can't attack.)
{W}, {T}: You gain 1 life.

When Russet Denmother enters the battlefield, choose one —
• Destroy target enchantment.
• Create a 2/1 red and white Fox creature token.

S-19 Long Jacket has first strike as long as it's attacking.
S-19 Long Jacket has lifelink as long as it's blocking.

Enchant creature
Enchanted creature gets +3/+3 and has flying and vigilance.
Lifecycle {3} ({3}, Discard this card: Create two tapped 1/1 colorless Elemental creature tokens.)

Search your library for an Equipment card, reveal that card, put it into your hand, then shuffle.
Monument {3}{W} (You may cast this transformed from your graveyard for its monument cost. Exile it if it would leave the battlefield or not resolve.)

Create a token that's a copy of a creature token you control.
Draw a card.

Once each turn, when you activate a nonmana ability, you may put a stage counter on Sacred Opus.
{1}{W}: Until end of turn, Sacred Opus becomes an Angel Avatar creature in addition to its other types and gains “This creature's power and toughness are each equal to the number of stage counters on it.”

When Safety Expert enters the battlefield, if you have more life than your starting life total, put a +1/+1 counter on target creature.

This spell can't be countered.
Target player gains hexproof until end of turn.
Fabled {2}{W}{W} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that player.)

Enchant player
Creatures enchanted player controls get +0/+1.

Prevent all combat damage that would be dealt this turn. Target player sacrifices an attacking creature.