Survive The Dungeon

Roll a D20 & add +3 for each differently
named dungeon you've completed.
[1-4] All players Venture Into The Dungeon
[5-8] You Venture Into The Dungeon twice
[9-12] Dido above & you copy a rooms effect
[13-16] Dido above except copy both rooms
[17-20] Venture Into The Dungeon 3 times
& repeat each rooms effect & draw 3 cards.