Intruder Alarm [Eighth Edition] Rat Does them some good if

Does them some good if we smash one every so often

Sacrifice that creature at the beginning of the next end step

the castle's walls mark the only place on Kamigawa where no kami has ever set foot

Set: Lorwyn Type: Creature — Elemental Incarnation Rarity: Rare Cost: {3}{G}{G}{G} Trample

Set: Mirrodin Besieged Type: Artifact — Equipment Rarity: Mythic Cost: {3} Equipped creature gets +2/+2 and has protection from black and from green

Intruder Alarm [Eighth Edition] Rat Does them some good ifSet: Eighth Edition Type: Enchantment Rarity: Rare Cost: {2}{U} Creatures don't untap during their controllers' untap steps. Whenever a creature enters the battlefield, untap all creatures. One footstep among many is silent. One footstep alone is deafening.