having 2 rdms should make it easy easy!
To avoid tarus, run to far side, that way your too far to be casted on.
Pld aggros and runs to other side in a cornor, 2-hours. Rdms spread out a bit and chainspell nuke, Will take hate from pld, Rdm keep nuking and recast blink once its down, along with stoneskin. Tanzen's first SC is usualy waisted on my blink. If tanzen desides to shoot with bow, then hes easy, if he runs up to ya, a bit harder. Tho with 2 rdms it should go back and forth between um.
SMn should just be ready to cure rdms if thay have to convert. Sam can make a Skill chain or 2 for lightning to make it even better (fragmentation for 70 rdm).
RDm and any few DD should not have problem. Took me a couple times as rdm to do tanzen right.