Cactus Game Design Message Boards

The Gold covenant could be a Watchful Servant replacement, except that you can use almost any NT human hero (Clay ones to be healed by Peter, those that are protected from capture/discard, etc), with the downside that demons aren't ignored. 
It also gives your opponent's N.T. Heroes the ignore power and does not give the ignore power to any of the Disciples except John.

I think the Warrior Class one should only work if all the heroes are Red and WC.  I don't like the idea of WC Captain, TSA, Benaiah, Ira, Ehud, Jephthah, etc. getting some amazing blanket protection.  OT splash is good enough - I'd prefer this to benefit the Red-only offense.  And you could maybe add something like "When your Red WC hero redeems a LS, take an opponent's artifact or release a captured hero" to replicate the spoils of war.
I don't want it to be just red, but I think I will restrict it to humans and swap Discard for Withdraw. The spoils is a cool idea! 

I think the hand control one is too powerful.  It's like Priest of Zeus, except more splashable.  Not all drawing is bad.  A game with no draw abilities can be very painful, and favors the person who gets their soul gen faster, or who doesn't draw souls.  A "Once per turn" cap might be in order.
You can still draw, you just get one in your hand sniped. Most draws are greater than D1 as well, so it doesn't even stop the speed increase.

The last covenant is a little to powerful if you can search for any card after any side battle as it sets up pretty much every combo in the book. My advice would be to change it to "When you win that side battle".
Why are combos a bad thing? Right now the game is hampered by the low payoff of high-risk setup. Most of the combos done in side-battles rely on losing the side-battle to prevent negation, and the one-per-turn rule already stops them from getting crazy. Am I missing something? (I don't play T2 so I very well could be)

Covenant of Solomon is interesting but not good for the game imo. Searching is was one of the most powerful concepts in the game and definitely doesn't need a reappearance.
Currently, tutoring is entirely shut down by a single Site that requires no support, no setup, doesn't eat the art slot like drawing counters, is easily blanket protected, also protects from Mayhem, and also hides a soul. It is also much slower compared to drawing (as most drawing is D2 at the very least, usually 3+), and usually only works at certain points of the game assuming a favorable deck order (Golden Cherubim being a notable exception). This would not grant regardless status to the biggest search offenders, either.