Gamemaster: Dungeons & Caverns Core Set Collector's Boxes This effect cannot be activated

This effect cannot be activated if you control a face-up "Treeborn Frog"

except Machine-Type monsters

Set: Neo Revelation Unlimited Type: Metal Rarity: Holo Rare Retreat cost: Colorless

the swamp gets into you

Gamemaster: Dungeons & Caverns Core Set Collector's Boxes This effect cannot be activatedEndless hours of adventure await you! Whether you descend into murky caverns or tread the pass of ancient Dwarf mines the GAMEMASTER: Dungeons & Caverns Core Set allows you to create any setting for your roleplaying party. Both fun and extremely easy to build, this set has absolutely EVERYTHING you need to build any subterranean setting for any RPG system or skirmish miniature game. Armed with specially manufactured XPS foam board and a versatile hot