This is an interesting artifact for a dragon deck.

In addition to the significant +5 icon bonus, it also give the user immunity to spells (except Wish (46/FR)), blood abilities, and thief skills, a very unique set of immunities. The only major support card types not protected against are psionic powers and unarmed combat cards. This, all by itself, is a good reason to use this card and why it should be considered.

However, it has an additional power when combined with a dragon avatar, which allows the immunity to go to all of this player's dragon champions (which can be all your champions in a dragon deck). Is this strong enough to warrent waiting for the avatar in the deck to be drawn? It depends on your gaming group. If you have opponents who truly enjoy many of these support types, it is a good choice. If not, it is just a +5 icon bonus with restrictions.

However, a serious dragon deck at tournament level should consider this card, especially if they use one of the three dragon avatars. It is a good support card and should have a place in most dragon theme decks, whether they are fun or serious.

It is a fairly strong card, and the only sure ways of getting rid of it if you are using one of those support card types are Wish and The Torture Room (12/DU).