In combat, this champion may use his chameleon power to make his allies (only) immune to the special power of opposing allies for the remainder of this combat round.
Copyrights:
TSR
Wizards of the Coast
Tagor is an interesting champion, but not appropriate for most decks. This psionicist isn't fitting for most psionic decks, but couples well with some psionic powers, like Complete Healing (67/PO) and Intensify (89/PO).
Primarily useful for decks focused on allies. This defensive ability isn't useful against non-ally decks, so Tagor's power will often not be used. However, being able to protect yourself from cards like Brine Dragon (45/DL) or Master Illithid (53/DU) could be very useful.
Not saving the champion though still makes this champion less useful that ones the restrict allies from being played (like Cistern Fiend (282/3rd) or Tergoz Tenhammer (60/3rd)) or makes the champion, and therefore his allies, immune to ally powers (like the Ghostly Piper (10/AR-chase)). In other words, you should be able to find another card better than Tagor unless you really want to couple psionics and allies.