Ravnica: City of Guilds — Common
Creature — Wurm
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
Trample (This creature can deal excess combat damage to defending player or planeswalker while attacking.)
The Rubblefield was once among the wealthiest districts in Ravnica. All it took was a single wurm to reduce it to ruins.