Caltrops (129) - Urza's Destiny

Caltrops (129) - Urza's DestinySet: Urza's Destiny Type: Artifact Rarity: Uncommon Cost: {3} Whenever a creature attacks, Caltrops deals 1 damage to it. Toward the end, Gatha struggled to keep his experiments in and his patrons out.

Set: Dragon's Maze Promos Type: Instant Rarity: Rare Cost: {W}{U}{U} Counter target spell

Whenever a creature token you control dies

({B/P} can be paid with either {B} or 2 life

Card TextReturn target nonland permanent to its owner's hand

"I can't hear them scream

Set: Planechase Anthology Planes Type: Plane — Lorwyn Rarity: Common Whenever a land enters the battlefield

Then if there are four or more charge counters on it

Set: Ravnica: City of Guilds Type: Creature — Human Wizard Rarity: Rare Cost: {1}{B} At the beginning of your upkeep

Gain control of target noncreature spell

Set: Duels of the Planeswalkers Promos 2013 Type: Creature — Sliver Rarity: Rare Cost: {3}{W} Sliver creatures you control have double strike

If it's a permanent card

Remove a +1/+1 counter from Walking Ballista: It deals 1 damage to any target