Bad batch have such good protection regeneration that, without the trample to worry about, all that protection to health stuff adds up to less overall survivability, unless you are r10+. There is the first 2 turns of protection up, but if things are going well for your bad batch team, the enemies won't attack until after it's expired.
I would have thought r7 bad batch would have been great at geo TB even without this. The lads are all hero units so get the bonus shot. Add in Omega pinking away with true damage to all enemies, droid battalion stacks would just melt away.
With the omicron, isn't every droid battalion enemy 1 shot killed? Bb Special attack, +true damage, + omega basic, +true damage, +damage per bb ally x4, plus geo hero second attack = 9 hits for 9 battalion removal on a b2 and 72 stacks removed from a b1, who start at 50?
I don't have relic BB, so have never tried it. Maybe obviously? Am I missing something?