Human-Time Lord Meta-Crisis
When you encounter Human-Time Lord Meta-Crisis, each player chooses one or two creatures they control. Each player creates a token that's a copy of the first creature they chose, except it isn't legendary. Then each player who chose a second creature puts a number of +1/+1 counters on the token they created equal to the power of the second creature they chose. (Then planeswalk away from this phenomenon.)
not legal Legacy
not legal Vintage
not legal Modern
not legal Standard
not legal Pioneer
not legal Pauper
not legal Commander
not legal Frontier