Quicksilver Amulet [Explorers of Ixalan]Set: Explorers of Ixalan Type: Artifact Rarity: Rare Cost: {4} {4}, {T}: You may put a creature card from your hand onto the battlefield. Those who examine the amulet too closely have been known to become part of its ornate carvings.

Set: Aether Revolt Type: Creature — Dwarf Warrior Rarity: Rare Cost: {1}{W}{W} Double strike

Set: Sun & Moon: Black Star Promos Type: Grass Rarity: Promo Retreat cost: Colorless

Overlord of Grixis

sacrifice The Gitrog Monster unless you sacrifice a land

red creatures get -1/-1 and if a player taps a Mountain for mana

Set: Unlimited Edition Type: Land — Plains Swamp Rarity: Rare ({T}: Add {W} or {B}

sacrifice it unless you return a non-Lair land you control to its owner's hand

Set: Guildpact Type: Artifact Rarity: Common Cost: {2} {1}

where X is the number of creatures devoured this way (As this enters the battlefield

Set: POP Series 2 Type: Fire Rarity: Rare Retreat cost: Colorless

Set: Sun & Moon: Burning Shadows Type: Supporter Rarity: Promo

you may untap that creature and remove it from combat