msem-instigator

[0]: Sacrifice a creature. When you do, Xiong Mao, Survivalist deals damage to any target equal to that creature's power, then put a number of loyalty counters on Xiong Mao equal to that creature's toughness.
[–2]: Return up to two target creature cards from your graveyard to your hand.
[–6]: You get an emblem with “Whenever a creature you control dies, you may draw cards equal to its power, then you may gain life equal to its toughness.”

Choose one or both—
• Target creature you control gets +2/+2 until end of turn.
• Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

At the beginning of combat on your turn, you may pay {2}{R}{R}. If you do, create a 4/4 red Dragon creature token with flying and haste. Exile that token at end of combat.
Ferocious — Whenever Xiusheng of the Dragon Realm attacks, if you control a creature with power 4 or greater, Xiusheng gains double strike until end of turn.

Enchant creature
{R}: Enchanted creature gets +1/+0 until end of turn.
Ferocious — Whenever enchanted creature attacks, if you control a creature with power 4 or greater, enchanted creature gains double strike until end of turn.

When Yamisaran Guard enters the battlefield, create a colorless Equipment artifact token with “Equipped creature gets +1/+1” and equip {1}.

Flying
Whenever Yawning Crane deals combat damage to an opponent, target tapped creature that player controls doesn't untap during its controller's next untap step.

Whenever Yenzu Mindwrencher perseveres, each opponent discards a card. (A creature perseveres when it survives damage.)

Young Dragonheart gets +1/+0 and has first strike as long as you control a legendary creature.

Target creature gains haste and trample until end of turn.
Fabled {3}{R/G}{R/G} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that creature.)

Soldiercycling {2}{W} ({2}{W}, Discard this card: Search your library for a Soldier card, reveal it, and put it into your hand, then shuffle.)

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

You have hexproof.
Adorned — Youthful Savior has hexproof as long as it's equipped and/or enchanted.

Flying
At the beginning of combat on your turn, choose one —
• Other creatures you control gain flying until end of turn.
• Other creatures you control with flying get +2/+2 until end of turn.

Hexproof
{1}{W}{U}, {T}: Exile target creature you control. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Flying
Erratic (When this creature dies, reveal the top four cards of your library. Put a creature card that costs less than this revealed this way onto the battlefield and the rest on the bottom of your library in any order.)
Whenever Zaidha, Seraph of Calamity deals combat damage to a player, choose up to two target nonland permanents that player controls and target nonland permanent you control. Destroy one of those permanents at random.

Whenever Zana, the Dreamer attacks, you may pay {3}{R}{R}. If you do, for each attacking nontoken creature you control, create a tapped and attacking token that's a copy of it, except the tokens aren't legendary. Exile those tokens at the beginning of the end step.

Trample
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Whenever two or more creatures an opponent controls block, adjudicate. (Create a white Aura enchantment token with enchant creature and “Sacrifice this token: Untap enchanted creature” attached to target creature.)
Enchanted creatures you control have menace.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
{T}: Add {G}.

Flash
Defender, flying

Equipped creature gets +1/+1 and has flying.
Equip {2}

Lifelink
When Zhehan, the Mediator enters the battlefield, you may put an Aura card with mana value 3 or less from your hand onto the battlefield attached to a creature it could enchant.

Menace
Ferocious — Whenever Zhenya, the Draconic becomes blocked by a creature, it deals 3 damage to that creature if you control a creature with power 4 or greater.