Accorder’s Shield

Equipped creature gets +0/+3 and has vigilance. (Attacking doesn’t cause it to tap.)
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Ghoul’s Feast

Target creature gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard.

Guardians of Akrasa

Defender (This creature can’t attack.)
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Tainted Isle

: Add .
: Add or . Activate this ability only if you control a Swamp.

Overrule

Counter target spell unless its controller pays . You gain X life.

Traveler’s Amulet

, Sacrifice Traveler’s Amulet: Search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.

Recoil

Return target permanent to its owner’s hand. Then that player discards a card.

Demon’s Horn

Whenever a player casts a black spell, you may gain 1 life.

Kraken’s Eye

Whenever a player casts a blue spell, you may gain 1 life.

Wurm’s Tooth

Whenever a player casts a green spell, you may gain 1 life.

Dragon’s Claw

Whenever a player casts a red spell, you may gain 1 life.

Champion’s Helm

Equipped creature gets +2/+2.
As long as equipped creature is legendary, it has hexproof. (It can’t be the target of spells or abilities your opponents control.)
Equip

Fierce Empath

When Fierce Empath enters the battlefield, you may search your library for a creature card with converted mana cost 6 or greater, reveal it, put it into your hand, then shuffle your library.

Dragon’s Claw

Whenever a player casts a red spell, you may gain 1 life.

Wurm’s Tooth

Whenever a player casts a green spell, you may gain 1 life.

Dragon’s Claw

Whenever a player casts a red spell, you may gain 1 life.

Kraken’s Eye

Whenever a player casts a blue spell, you may gain 1 life.

Demon’s Horn

Whenever a player casts a black spell, you may gain 1 life.