The opportunity cost of shield bash is too darned high

[Tanaya]

I've actually had ifrit go immune on stuns before he starts doing plumes. ...is that a dps problem?

From the transition from Phase 1(100% HP) to Phase 2(75% HP), there is a chance where Ifrit will perform one eruption too frequently and doesn't give the Stun's DR the time to reset. It's usually by about 2 or 3 seconds.

That is the only time when Ifrit has become immune without another DPS making a mistake, and I've ran Ifrit about 50 times.