In case this is news to anyone, Tyrans pulls are negated by Corruption stacks, having aggro on Calph, or having 36 points/top tier in the healing tree. We've seen about one instance ever where the Calph tank was pulled while "having aggro", but it might have gotten ripped and no one was recording to check.
The Tyrans porting is why we adopted a new strategy rather than the ole fashioned tank swap. On top of messy red circles, we got tired of having 4 things wipe us that were 100% RNG based (kiter getting lifted, one tank getting lifted during swap if it wasn't done perfectly, Tyrans porting during swap, Tyrans pulling new Bestia tank during swap leading to lolbuffedTB).
We have Council to a 1shot, occasionally taking longer but as many others are going through, we're bleeding players. Titling at this point is a farcry, we've lost 3 players in the last couple weeks from our title roster. Dead game is dead. Would have been nice to get DM while NiMP was active, but I don't even know how much longer I'll be logging in so /meh.