
Sorcery
Wyrm hasn't broken down this card yet — check back soon.
Wyrm hasn't mapped related cards for this one yet — check back soon.
You don’t choose which creature to sacrifice until Tip the Scales resolves. You must sacrifice exactly one creature if you control one at that time. Doing so causes a “reflexive” ability to trigger. Players may respond to that ability knowing the value of X.
Use the sacrificed creature’s toughness as it last existed on the battlefield to determine the value of X.