Silversun was driven insane in her quest for a balance between good and evil. If she attacks and wins a round of combat, the realm is razed, but she is discarded.
Copyrights:
TSR
Wizards of the Coast
Silversun is an interesting card. Being a level 9 cleric, she is one of the most powerful clerics in the game, behind Nemon Hotep (67/NS), Jerome Kazinskaia (25/IQ), and many avatars.
Her purely offensive power (she's just a random schmuck when defending) is a use it and lose it type power. If she wins when attacking a realm (note: attacking anywhere but a realm does not activate Silversun's power), she MUST be discarded and the realm razed (unless the realm negates her power, like Griff Mountains (5/DR), in which case her power doesn't activate at all).
For an instant win deck (using cards like The Dreaded Ghost (246/4th) or Blamblower (56/DL)) this can be very useful, getting spoils to hopefully get another realm. However, most decks like to keep high level champions in play, so a deck hoping to make maximal use of this card needs cards to bring her back from the discard pile, like Coming of the Phoenix (56/RR).
I'd only suggest using Silversun in a deck that focused on instant wins and has lots of other champions to fill in the gap when Silversun is discarded.
