Duskmourn: House of Horror Commander
Shriekwood Devourer
Trample
Whenever you attack with one or more creatures, untap up to X lands, where X is the greatest power among those creatures.
Formats
Not Legalstandard
Not Legalfuture
Not Legalhistoric
Not Legaltimeless
Not Legalgladiator
Not Legalpioneer
Not Legalmodern
Legallegacy
Not Legalpauper
Legalvintage
Not Legalpenny
Legalcommander
Legaloathbreaker
Not Legalstandardbrawl
Not Legalbrawl
Not Legalalchemy
Not Legalpaupercommander
Legalduel
Not Legaloldschool
Not Legalpremodern
Not Legalpredh
Not Legaltlr