msem-instigator

{W}: Parish Custodian gains lifelink until end of turn. (Damage dealt by this creature also causes you to gain that much life.)

Parish Paragon gets +1/+1 for each creature you control.
All damage that would be dealt to other creatures you control not named Parish Paragon is dealt to Parish Paragon instead.

Tithe (As you cast this spell, you may tap three artifacts and/or creatures you control.)
Tap target creature. If this spell's tithe was paid, exile that creature.

Tithe (As you cast this spell, you may tap three artifacts and/or creatures you control.)
Create two 1/1 red Cleric creature tokens with haste. If this spell's tithe was paid, create four of those tokens instead.

You may play cards you own from outside the game.

Harmony — Creatures you control get +1/+0 and gain vigilance until end of turn.
When Plume de Val Singer enters the battlefield, harmonize. (Trigger up to one harmony of one permanent you control.)

{1}{U}: Target creature can't be blocked this turn.

Harmony — Exile another target creature until Pretentious Performer leaves the battlefield.
When Pretentious Performer enters the battlefield, harmonize. (Trigger up to one harmony of one permanent you control.)

Vigilance, trample
Prized Marshcroaker can block an additional creature each combat.

When Prophetic Prism enters the battlefield, draw a card.
{1}, {T}: Add one mana of any color.

Enchant creature
Enchanted creature can't attack or block.
Enchanted creature has “{7}: Destroy Proselytize.”

Choose one —
• Radiant Outburst deals 3 damage to target creature.
• Harmonize twice. (To harmonize, trigger up to one harmony of a permanent you control.)

As long as it's your turn, Rallying Rector has first strike.
Whenever Rallying Rector attacks, you may discard a card. If you do, search your library for a card named Rallying Rector, reveal it, put it into your hand, then shuffle.

Enchant opponent
When Ranidaphobia enters the battlefield, create a 1/1 blue Frog creature token.
Creatures enchanted player controls can't block Frogs.

Tithe (As you cast this spell, you may tap three artifacts and/or creatures you control.)
Return target creature or planeswalker card from your graveyard to your hand. If this spell's tithe was paid, return that card to the battlefield instead.

Harmony — Destroy target artifact or enchantment.
When Rejoicing Aristocrats enters the battlefield, harmonize. (Trigger up to one harmony of one permanent you control.)

Remarkable Hunter must be blocked if able.

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.)
When Returned Bokor dies, return it to its owner's hand.

Flying

Choose one or both —
• Riverboat Assault deals 3 damage to target creature.
• Target creature gets +3/+3 until end of turn.

Harmony — Untap target permanent.
Whenever you cast an instant or sorcery spell, harmonize. (Trigger up to one harmony of one permanent you control.)

{T}: Add {C}.
{2}, {T}: Add three mana of any one color.
{3}, {T}: Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

When Scaleblight Warrior enters the battlefield, you gain 2 life.
Pay 2 life: Scaleblight Warrior gains menace until end of turn.