Chimney sweeps, explorers of abandoned buildings, spire climbers . . . goblin spelunkers have found countless niches within Ravnica's metropolis.

Ravnica: City of Guilds

Goblin Spelunkers

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Goblins prefer caves to just about anything else. Caves prefer just about anything else to goblins.

Mountainwalk (This creature is unblockable as long as defending player controls a mountain.)

"It only short jump. You go first."
"AIIIEEEE!"
"Hmm . . . we go different way now."

Mountainwalk (If defending player controls a mountain, this creature is unblockable.)