Worm With A Human Face

When Worm With A Face enters the battlefield, put all creatures into their
owners' dirt zones. Worm and Horror cards
put into dirt zones this way have a burrow
cost of {0} until end of turn. (You can cast
cards from your dirt zone by paying their burrow costs.)
Burrow {u/b}{u/b}{u/b}{u/b}{u/b}