Endevos, Nimble Explorer

{t}: Roll a d20, activate this ability only any time
you could cast a sorcery.
1| fatal mistake - Sacrifice this creature
2-9| loose ground - go back one level in your
dungeon, if you haven't started one or are on the
first level of a dungeon sacrifice this creature.
10-19| Venture into a dungeon
20| Venture into a dungeon twice, untap Endevos.
Whenever you complete a dungeon, untap
Endevos.