msem-instigator

Creatures you control get +1/+1 until end of turn.
Inscribe {2}{W} ({2}{W}: Exile this card from your hand inscribed on a creature you control. Whenever that creature attacks, its controller may cast a copy of the inscribed card without paying its mana cost. Inscribe only as a sorcery.)

Choose one —
• Target creature gains indestructible until end of turn.
• Destroy target creature with toughness 4 or greater.

Motivate 1 (When this creature enters the battlefield, you may motivate target creature with less power than this by putting a +1/+1 counter on it.)
{2}{W}{W}: Exile Valtrian Cavalier, then return it to the battlefield under your control.

Whenever Vanguard of the Barricade attacks, tap up to one target creature defending player controls and untap up to one other target creature you control.

{3}{W}: Exile Vanishing Memory and target creature an opponent controls.

Exile target nonland permanent. Return that card to the battlefield under its owner's control at the beginning of that player's next end step.

Gestalt (When this or another creature enters under your control, you may merge it with the one in play, keeping counters and attachments. They become the permanent on top plus all abilities from under it.)
If this creature would die, you may instead put a card or token merged with it into its owner's graveyard. If you do, remove all damage marked on this creature.

Counter target spell unless its controller pays {3}.

As long as you control exactly one creature, no more than one creature can attack or block each combat.

Lifelink
Prevent all combat damage that would be dealt to embattled creatures you control. (A creature is embattled if it has a counter on it or a permanent you control attached to it.)

[+2]: Destroy up to one target monocolored permanent.
[–3]: Create an 8/8 Elemental creature token with flying, first strike, vigilance, trample, and lifelink that's all colors.
[–5]: Draw three cards. You pay {0} rather than pay the mana cost for the next spell you cast this turn.

Enchant creature
Enchanted creature gets +2/+2.
At the beginning of combat on your turn, enchanted creature gains your choice of flying, vigilance, or lifelink until end of turn.

Flash
Spirited (When this creature enters the battlefield, you may activate one of its activated abilities without paying its cost.)
{T}: Target creature gets +0/+4 until end of turn.

Venerated Beast can't be blocked by more than one creature.

Adorned — At the beginning of your end step, if Venerated Knight is equipped and/or enchanted, put a +1/+1 counter on it.

Opponents drawing a card during your turn causes one death knell of a permanent you control to trigger.
Death knell — Spells target opponent casts this turn cost {1} more to cast. (As a creature you control dies, trigger one death knell of that creature or another permanent you control.)

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever you cast an Equipment or Adventure spell, add a quest counter.
1, 2 — Exile the top two cards of your library, then choose one of them. You may play that card until the end of your next turn.
3 — Until end of turn, target creature you control gets +1/+0 and gains double strike, vigilance, and indestructible.
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Each player chooses an artifact or enchantment they control, then sacrifices the rest.

When Verdict of the Council enters the battlefield, exile up to one target creature until Verdict of the Council leaves the battlefield.
White creatures you control get +1/+0.

Level experience, vigilance, trample
Prevent all but the first 1 damage that would be dealt to Verdigris Behemoth each turn. [5/5]
[level 3+] Whenever Verdigris Behemoth deals combat damage to a player, you may destroy target artifact or enchantment that player controls. [7/7]

Other Rebel creatures you control get +0/+1.
When Veteran Renegade enters the battlefield, create a 1/1 white Rebel creature token.

Whenever a creature you control dies, you may pay {W}. If you do, you get a glory counter. (You lose glory counters before life. A player with ten or more glory counters wins the game.)
{2}{W}, {T}: Return target creature card from your graveyard to the battlefield. Activate this ability only if you are glorious.

Vigilance
{6}: You may tap or untap target creature.

Flying, lifelink
Whenever a creature you control dies, Vindictive Regent gets +1/+1 until end of turn.
At the beginning of your end step, if you gained 3 or more life this turn, each opponent sacrifices a creature.