Visions · VIS · common
Sorcery
wotc · 2004-10-04
The return of X of your Swamps to your hand is part of the cost and is paid on casting. You do not have a choice to pay this cost zero times or more than one time in order to multiply the effect.
wotc · 2004-10-04
You can use X as being zero.
wotc · 2004-10-04
If X is 0, you can’t choose any targets.