Defense of the Heart [Urza's Legacy] Lightning[-20] puts it on the bottom

puts it on the bottom of their library

except "Gladiator Beast Bestiari"

By discarting 1 card from your hand

remove all mire counters from a land that a mire counter was put onto with Cyclopean Tomb but that a mire counter has not been removed from with Cyclopean Tomb

providing welcome relief for weary warriors who defend the land

Defense of the Heart [Urza's Legacy] Lightning[-20] puts it on the bottomSet: Urza's Legacy Type: Enchantment Rarity: Rare Cost: {3}{G} At the beginning of your upkeep, if an opponent controls three or more creatures, sacrifice Defense of the Heart, search your library for up to two creature cards, and put those cards onto the battlefield. Then shuffle your library.