When Aether Channeler enters the battlefield, choose one — • Create a 1/1 white Bird creature token with flying. • Return another target nonland permanent to its owner's hand. • Draw a card.

Vigilance, lifelink When Aragorn, King of Gondor enters the battlefield, you become the monarch. Whenever Aragorn attacks, up to one target creature can't block this turn. If you're the monarch, creatures can't block this turn.

When Champion of Wits enters the battlefield, you may draw cards equal to its power. If you do, discard two cards. Eternalize {5}{U}{U} ({5}{U}{U}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Naga Wizard with no mana cost. Eternalize only as a sorcery.)

Flying When Cloudblazer enters the battlefield, you gain 2 life and draw two cards.

Flying When Cloudkin Seer enters the battlefield, draw a card.

Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.) As long as Deadeye Navigator is paired with another creature, each of those creatures has "{1}{U}: Exile this creature, then return it to the battlefield under your control."

Reach When Gearbane Orangutan enters the battlefield, choose one — • Destroy up to one target artifact. • Sacrifice an artifact. If you do, put two +1/+1 counters on Gearbane Orangutan.

Flying, protection from black Echo {3}{W}{W} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) When Karmic Guide enters the battlefield, return target creature card from your graveyard to the battlefield.

Flying, haste Whenever an opponent casts their second spell each turn, draw a card. Partner (You can have two commanders if both have partner.)

{2}{W}{U}: Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Ninjutsu {2}{U} ({2}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) When Moonsnare Specialist enters the battlefield, return up to one target creature to its owner's hand.

First strike, hexproof Whenever Narset, Enlightened Master attacks, exile the top four cards of your library. Until end of turn, you may cast noncreature spells from among those cards without paying their mana costs.

Whenever a creature is exiled from the battlefield, put a +1/+1 counter on Soulherder. At the beginning of your end step, you may exile another target creature you control, then return that card to the battlefield under its owner's control.

Ninjutsu {2}{U}{U} ({2}{U}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Flying When Thousand-Faced Shadow enters the battlefield from your hand, if it's attacking, create a token that's a copy of another target attacking creature. The token enters the battlefield tapped and attacking.