The only reason to have 1 merit into fealty would be in a specialty type zerg situation. Something to throw on top invincible for that little extra something, something. I think its nice if your zerging down something like for example dynamis lord, and you have Invincible on, not to have him hit you with one of his nasty aoe enfeebles. Plenty of mobs in this game are Invincible / zerged. I'm probably going to go 4 Chiv / 5 Guardian / 1 Fealty for this reason. Not to pop it every 20 mins for no reason but to have an Invincible +1...
