Ellissence, Mana-Weaver

Whenever you cast an instant or sorcery spell, if
it isn't a copy of another spell on the stack, then
you may pay {1}{p/u}{p/b}{p/r} any number of times. For
each time you do, it gains your choice of lifelink,
wither, hexproof, or "Proliferate." Whenever you
pay this cost twice or more on one spell, scry 5,
then draw a card, then discard a card, then each
opponent discards a card, then Ellissence, Mana-
Weaver deals damage to any target equal to the
greatest converted mana cost of any card which