Bioshift | Magic: The Gathering
Formats Bioshift is Legal in
Official Oracle Text for Bioshift
—Zija, Simic mutationist
Official Rulings for Bioshift
1/24/2013 : You decide how many counters to move when Bioshift resolves.
1/24/2013 : If one of the two creatures is an illegal target when Bioshift tries to resolve, or if the creatures are controlled by different players at that time, no counters will move.