msem-instigator

This spell costs {2} less to cast if it targets a creature with an Adventure.
Destroy target creature or planeswalker.

Ward {2}
Slippery Bunyip can't be blocked except by creatures with Adventures.

{4}, {T}: Add {W}{U}{B}{R}{G}.

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

Cenotaph Possessor gets +1/+1 for each permanent you control that's an artifact, creature, and/or enchantment.
{2}{W}, {T}: Target creature gets +1/+1 for each permanent you control that's an artifact, creature, and/or enchantment. until end of turn. Activate only as a sorcery.

Look at the top seven cards of your library. Put two of them into your hand and the rest into your graveyard.

Destroy target creature. End of the Road deals damage equal to that creature's power to that creature's controller or a planeswalker that player controls.

{T}: Add {C}.
{1}, {T}: Add {U}{R}.

Whenever a creature you control becomes the target of a spell or ability, counter it unless its controller pays {1}. Whenever they do, put a +1/+1 counter on Brushcover Elf. (This includes your spells and abilities.)

Lifelink
If a creature or planeswalker would die, instead exile it and put a +1/+1 counter on Librarian of Whispers.

When Treacherous Warden enters, search your library for a card, put into your graveyard, then shuffle.
Whenever a creature enters from your graveyard, each opponent loses 2 life and you gain 2 life.

When Wondering Oaf dies, return target instant or sorcery card from your graveyard to your hand.

You may pay {0} rather than pay the glitch cost for spells you cast.
Whenever you cast a glitched spell, Warped Glitchmage deals 1 damage to target opponent.

({T}: Add {R} or {W}.)
Gnarled Henge enters tapped unless you control two or more basic lands.

When Keeper of Blue Incense enters, submerge target card from your graveyard. (To submerge a card, exile it, then put it on the battlefield face down under its owner's control as a 2/2 creature.)

Whenever a player discards a card, you may draw a card and put a loyalty counter on Mei Liva, the Broken.
[0]: Target permanent's controller sacrifices it unless they discard two cards.
[–1]: Each opponent loses X life and you gain X life, where X is the number of cards in your hand.
[–3]: Target player chooses a card in their hand, then discards the rest.

As Battle for the Shield enters, choose Danuri or Fellor.
• Danuri — Soldiers you control get +0/+1 and have vigilance.
• Fellor — Warriors you control get +1/+0 and have first strike.

Creatures with defender you control can attack as though they didn't have defender.
Each creature you control assigns combat damage equal to its toughness rather than its power.

{T}: Add {C}.
{2}, {T}: Add three mana of any one color.

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.

You may cast up to two target instant and/or sorcery cards from your graveyard this turn. If a spell cast this way would be put into your graveyard, exile it instead.

{R}, Tap two untapped artifacts you control: Incineration Expert deals 1 damage to any target.
{3}{R}, Tap eight untapped artifacts you control: Incineration Expert deals 8 damage to any target.

Menace
Regal Dragoon gets +1/+1 as long as you control a legendary creature.

This spell costs {2} less to cast if you activated an ability that's not a mana ability this turn.
Searing Grace deals 3 damage to any target.

By Blood and Fire deals 3 damage to any target. Up to one target creature seeks valor. (Give it that Oath Aura. Fulfill it by it dealing combat damage to a player to create a 2/1 white Soldier token.)