Welcome to the Wizard101 Message Boards

The invisible polymorph:

Health: 2250
Desc: Enemies cannot use negative charms or wards on you for six rounds
Pips: Unlike normal polymorphs, this one requires 3 pips.
School: Unlike normal polymorphs, this one morphs to your school, cards and damage are appropriate for your school.

Polymorph Attacks:
Backstab: 500 (school) damage (5 pips)
Silent Strike: 185 (school) damage (2 Pips)
Shadow Sap: 300 (school) steal, half for health (3 pips)
(school negative ward)
(school positive charm)
(school 3 pip attack)
(school 4 pip attack)

After the duration of the spell ends, it activates a ward, much like a stun block that will dispel the card.

To make this easier, if someone was ice and uses the polymorph this would be it:

Polymorph Attacks:
Backstab: 500 ice damage (5 pips)
Silent Strike: 185 ice damage (2 Pips)
Shadow Sap: 300 ice steal, half for health (3 pips)
Ice Trap
Iceblade
Evil Snowman
Ice Wyvern

Thanks for reading!

I really like this idea.