Eureka

Starting with you, each player may put a permanent card from their hand onto the battlefield. Repeat this process until no one puts a card onto the battlefield.

Addle

Choose a color. Target player reveals their hand and you choose a card of that color from it. That player discards that card.

Memory Lapse

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Forest Bear

To Arms!

Untap all creatures you control.
Draw a card.

Miscalculation

Counter target spell unless its controller pays {2}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Blackmail

Target player reveals three cards from their hand and you choose one of them. That player discards that card.

Child of Alara

Trample
When Child of Alara dies, destroy all nonland permanents. They can't be regenerated.

Goldmeadow Lookout

{W}, {T}, Discard a card: Create a 1/1 white Kithkin Soldier creature token named Goldmeadow Harrier. It has "{W}, {T}: Tap target creature."

Dense Foliage

Creatures can't be the targets of spells.

Abbey Matron

{W}, {T}: Abbey Matron gets +0/+3 until end of turn.

Puppeteer

{U}, {T}: You may tap or untap target creature.

Arni Metalbrow

Whenever a creature you control attacks or a creature you control enters attacking, you may pay {1}{R}. If you do, you may put a creature card with mana value less than that creature's mana value from your hand onto the battlefield tapped and attacking.