Polymorph, T2R3, Mage
Debuff, Arcane
Add [T3] to debuffed character. Debuffed character loses all abilities and can't be targeted by its enemies until the start of its next turn. (Remove this debuff as debuffed character's next turn starts.)
303.5 Ongoing abilities affecting a character continue to do so regardless of that character’s form changes. A
character in a form that “loses all abilities” stays in that form and keeps the stats from that form, but loses
any abilities granted by that form as usual.
700.1 The text in a character card’s upper and lower text boxes represents the abilities of that character, as does
the text in the text boxes of that character’s Action Bar cards. Each character’s upper text box contains a
single ability that is that character’s main attack. Each Action Bar card also contains one or more abilities.
The ABCs are abilities that the character possesses. Once he is polymorphed, he loses all abilities. Sulfuras would be affected and the damage would not be granted.