Equipped creature gets +1/+1.
Ninjutsu abilities you activate cost {1} less to activate.
Whenever a Ninja creature you control enters, you may attach Arushi to that creature.
Equip {1}

When Ascend to Power enters, you may sacrifice a creature, discard a card, or pay 3 life. If you do, draw two cards.
You've sacrificed a nonland permanent this turn.
You've discarded a card this turn.
You've lost life this turn.

Flying
Flow — {3}{U}: Target player mills three cards.

Whenever Ascended Seer attacks, it gets +1/+0 until end of turn unless defending player pays {1}.

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

As an additional cost to cast artifact spells, you may pay {2}. When you do, each opponent sacrifices an untapped creature.

When Askir's Rearguard enters, if a creature you control dealt combat damage to a player this turn, draw a card.
Wander {1}{U}

Menace
Whenever you cast an artifact spell, each opponent loses 2 life.

Menace
When Askir enters, each opponent loses life equal to the amount of life they've lost this turn.
Wander—{1}{B}{B}, Pay 4 life.

Deathtouch
If an opponent would lose life, they lose that much life plus 1 instead.
Spellcharge 3

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.

Equipped creature gets +2/+0 and has reach.
Whenever a creature you control enters, if it wandered, you may attach Aspirant's Hookrope to it.
Equip {2}

Trample
Whenever Aspiring Anarchist attacks, you may have its base power and toughness become equal to the power and toughness of another target attacking creature until end of turn.

Haste
When Assault Engine enters, gain control of target creature and untap it. Sacrifice it at the beginning of the next end step.
Crew 2

When this creature enters, each player may cache the top card of their library face down.
{3}{G}: This creature gets +3/+3 until end of turn. Activate only once each turn.

Indestructible
As long as your devotion to white and black is less than seven, Athreos isn't a creature.
Whenever a creature dies, exile it with a coin counter on it. Each opponent loses 1 life and you gain 1 life.
Whenever Athreos attacks, put a creature card you exiled with a coin counter on it onto the battlefield under your control.

When this creature enters, create a 4/4 colorless Vehicle artifact token named Hardsuit with crew 3.
Artifact tokens and enchantment tokens you control have exalted.

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.

Whenever Augmented Ruffians attacks, integrate the top card of defending player's library.
Augmented Ruffians gets +1/+1 for each card integrated onto it.

Trample
Whenever Aurore enters or attacks, surveil 3, then return all land cards from your graveyard to the battlefield tapped.

When this enchantment enters, if it was cast, return target creature card from your graveyard to the battlefield.
At the beginning of your upkeep, exile up to one target creature you control, then return that card to the battlefield under its owner's control.

Creatures you control get +1/+0.
Creatures you don't control get -1/-0.

{1}, Sacrifice Auto Sifter: Search your library for a basic land card, reveal it, put it into your hand, the shuffle.

When this creature enters, reveal cards from the top of your library until you reveal a land card. Put that card into your hand and the rest into your graveyard.