dungeon mtg cards How to choose a when a card says venture into the dungeon? Dungeon of the Mad Mage

These are cards that push the rules to their limits, providing unique mechanics that do not generally work within a proper Magic set

When Silent Hallcreeper becomes a copy of the target creature, it's neither entering nor leaving the battlefield

A well-timed Wildfire could leave the opponent with zero permanents, locking them out of the game, while you could retain several mana rocks and a creature to finish them off

Then you may discard a nonland card

The permanent returned could be an artifact or planeswalker, whatever you want outside of an instant or sorcery

You nonland stuff is all colors for things like Bloom Tender and your lands are every basic land type so that's ideal for making that mana