Reach, trample, lifelink
Ward
, Exile Wilson, Urbane Bear from your graveyard: Target creature you control perpetually gains lifelink. Activate only as a sorcery.

Flying
Whenever one or more permanents you control leave the battlefield, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

At the beginning of your upkeep, each opponent loses 3 life unless that player sacrifices a nonland permanent or discards a card.

Vigilance
During your turn, prevent all damage that would be dealt to this creature.

At the beginning of your upkeep, scry 2.

Exile target creature you control, then return that card to the battlefield under its owner's control.
Draw a card.

Flying
: Target creature gains flying until end of turn.

: Add one mana of any color. When you spend this mana to cast a Dragon creature spell, scry 2.

Choose one —
• Fight the Current — The owner of target nonland permanent puts it on the top or bottom of their library.
• Find a Crossing — Target creature gets +1/+0 until end of turn and can't be blocked this turn.

: Add . If that mana is spent on a Dragon creature spell, it gains haste until end of turn.

Up to two target creatures you control each deal damage equal to their power to another target creature.

Target creature an opponent controls perpetually gets -2/-2 and gains "At the beginning of each upkeep, this creature perpetually gets -1/-1."

At the beginning of your upkeep, each opponent discards a card.

Imoen, Wily Trickster can't be blocked.
Whenever Imoen deals combat damage to a player, you may exile an instant or sorcery card from your graveyard. When you do, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Whenever this creature enters or dies, create a 1/1 green Saproling creature token.
: Add one mana of any color.

Rejuvenation — : Return Vladimir and Godfrey from your graveyard to the battlefield tapped. It perpetually gets +1/+1. Activate only if you control a 1/1 creature.

Hexproof from artifacts and enchantments
When this creature specializes, destroy up to one target artifact or enchantment. You get a one-time boon with "When you cast a creature spell, it perpetually gets +1/+0 and gains haste."

Permanents you control gain hexproof and indestructible until end of turn.
Seek a creature card if an opponent has cast a spell with mana value 3 or less this turn.

When Ulder Ravengard, Marshal enters the battlefield, another target nontoken creature you control gains double team until end of turn.
Whenever Ulder Ravengard attacks, conjure a duplicate of another target nontoken attacking creature into your hand.

Double strike, reach, trample
Ward
, Exile Wilson, Ardent Bear from your graveyard: Target creature you control perpetually gains double strike. Activate only as a sorcery.

Whenever you draw your second card each turn, this creature gains flying until end of turn.

Specialize
: Draw a card, then discard a card. Put a study counter on Vhal, Eager Scholar.

Enchant nonland permanent
Enchanted permanent is a Treasure artifact with ", Sacrifice this artifact: Add one mana of any color," and it loses all other abilities. (If it was a creature, it's no longer a creature.)

Improvised Weaponry deals 2 damage to any target. Create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

When this creature specializes, conjure a duplicate of target creature card exiled with this creature into your hand. The duplicate perpetually gains "You may spend mana as though it were mana of any color to cast this spell" and "When this creature enters, each opponent loses 2 life and you gain 2 life."
: Exile target card from a graveyard.

: Add . When you spend this mana to cast a Dragon creature spell, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

: Add . When you spend this mana to cast a Dragon creature spell, it enters with an additional +1/+1 counter on it and gains hexproof until your next turn. (It can't be the target of spells or abilities your opponents control.)

Choose one —
• Foil Their Scheme — Counter target spell.
• Learn Their Secrets — Draw two cards, then discard two cards.

Deathtouch
Shadowheart, Cleric of Twilight can't be blocked by creatures with power 2 or less.
At the beginning of your end step, Shadowheart deals 1 damage to each player.
Whenever you lose life during your turn, put a +1/+1 counter on Shadowheart.

Wild Shape — Specialize . Activate only if you control six or more lands.
When Lukamina, Moon Druid enters, if you cast it, seek a land card with a basic land type.

Imoen, Chaotic Trickster can't be blocked.
Whenever Imoen deals combat damage to a player, you may exile an instant or sorcery card from your graveyard. If you do, Imoen deals 2 damage to each opponent.

Menace, double team (When this creature attacks, conjure a duplicate into your hand, then both of them perpetually lose double team.)

Double strike
Whenever Klement, Tempest Acolyte is dealt damage, it deals that much damage to any target.

Warlocks you control have menace.

Create a token that's a copy of target creature you control, except the token has flying and it isn't legendary.

When Minsc & Boo enters and at the beginning of your upkeep, you may create Boo, a legendary 1/1 red Hamster creature token with trample and haste.
+1: Put three +1/+1 counters on up to one target creature with trample or haste.
−2: Sacrifice a creature. When you do, Minsc & Boo deals X damage to any target, where X is that creature's power. If the sacrificed creature was a Hamster, draw X cards.
Minsc & Boo, Timeless Heroes can be your commander.