Landfall — Whenever a land you control enters, each opponent loses 1 life.

Lifelink
When Weathered Blackguard enters, you may attach target Equipment you control to it.
Wander {2}{B}

{1}{B}: Search your library for a card named Whisper Squad, put it onto the battlefield tapped, then shuffle.

When Widowed Maiden enters, return target creature card from your graveyard to your hand.
Spellcharge 3

Menace
Cybersoul {3}{B}

When Worshipped Diva enters, if a creature died this turn, create a 2/1 red Zombie creature token with menace.

Once each turn, when one or more cards leave your graveyard, you may have each opponent lose 1 life and you gain 1 life.
{2}{B}, Exile Writheling from your graveyard: Exile target card in a graveyard. You draw a card and you lose 1 life. Activate only as a sorcery.

Whenever your Champion attacks, Xarr's Mockery gains indestructible until end of turn.

At the beginning of combat on your turn, you may integrate another creature you control. If you don't, tap Xavvac, Corrupter Core.
Permanents you control with cards integrated onto them have lifelink and deathtouch.

Flash
{2}{B}, Discard Zyxthax Apex: Each opponent loses 3 life and you gain 3 life.
{6}{B}{B}: Return Zyxthax Apex from your graveyard to the battlefield tapped with a finality counter on it.

A God Divided deals 2 damage to each nonenchantment creature.
Creatures you control get +1/+0 until end of turn.
You may sacrifice a creature. If you do, A God Divided deals damage to any target equal to the sacrificed creature's power.

Whenever you cast a spell, if mana from an artifact source was spent to cast it, you may copy that spell, and you may choose new targets for the copy. Do this only once each turn.

Enchant creature
Enchanted creature gets +2/+0 and has “Attacking creatures you control get +1/+0.”
Wander {2}{R}

Whenever you cast a spell that targets Anvilwrought Lion, creatures you control get +1/+0 until end of turn.

Favored
Whenever your Champion deals combat damage to a player, create that many Treasure tokens.

Sacrifice Archaeovolcanologist: Choose an instant, sorcery, or land card in your graveyard. You may play that card this turn.

Menace
When Ardent Voter enters, make a pledge.

Menace
Creature tokens you control get +1/+1, have haste, and must attack each combat if able.
At the beginning of combat on your turn, create a 1/1 red Soldier creature token.

Trample
Whenever Arena Champion attacks, create a Weapon token, then attach it to an attacking creature you control.

Haste
Arid Outrider gets +1/+0 as long as you control a token.

Flying, haste
Whenever you cast a spell that targets a creature you control, you may return Ashlands Phoenix from your graveyard to your hand.

This spell can't be countered.
Haste
Whenever an opponent casts a spell during your turn or spends at least five mana to cast a spell, Aspirant's Bane deals 5 damage to that player.

Create a tapped 2/1 red Human Warrior creature token.
Flashback {2}{R}

When Audacious Roughrider enters or leaves the battlefield, exile the top card of your library. Then you may discard a card. If you do, put the exiled card into your hand. If you don't, create a Treasure token.
Wander {4}{R}{R}

Favored
Whenever a legendary creature you control attacks, create a tapped and attacking token that's a copy of that creature, except it's not legendary and is an enchantment in addition to its other types.