Winterflame won’t affect any target that’s illegal as it tries to resolve. If you choose to use both modes and both targets are illegal at that time, Winterflame won’t resolve.
20-09-2014
wotc
If you choose both modes, they can each target the same creature or they can target different creatures.
20-09-2014
wotc
You choose which mode you’re using—or that you’re using both modes—as you’re casting the spell. Once this choice is made, it can’t be changed later while the spell is on the stack.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.
Richard Wright2014-09-26
