By simply switching his face-up monsters to the back defense, he has a tremendously strong effect of sending out two of his Krawlers from the Deck, and it is truly a savior that greatly compensates for the deployment power of his Krawlers, which were weak at the beginning
I just think these downsides make it much less promising as a commander and a better card to have in your main decks instead
Destroying Violet Poison Magician to set a Metalfoes Spell/Trap, profit
I might want to consider putting this in the main Karador deck instead, because that one sometimes struggles to finish (after being quite durdly)
The freedom to pursue these crazy win conditions in a realistic way is a small part of what makes the casual format so popular
Land Color tag templates(None) Arid Mesa , Pay 1 life, Sacrifice this land: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle