Can you tell me the rulings for Dragon Throne of Tarkir?
user
0. The value of X is determined as the activated ability resolves. If the equipped creature isn’t on the battlefield at that time, use its power the last time it was on the battlefield to determine the value of X.
1. If the equipped creature’s power is negative while resolving the activated ability it gains, X is considered to be 0. (This is a change from previous rulings.)
assistant