TBH - I never gave it much thought... My only focus has been scounting the spy and making sure it wasn't more than relic 5, and then I usually win that fight 9 out of 10 times no matter what happens. If spy is higher relic, he will often be able to one shot my Sion, and that usually spells game over.
Otherwise, Sion will just keep tanking away and the geos will kill them selves by proxy with help from Traya. I usually bring Nihilus along as well even though he's probably not needed. But he has an AOE attack, and if the fight drags out he can remove a key geo for me.
My Traya is R3, Sion is R3 and Nihilus is R4. Traya is tanky. Sion is actually not - he's semi fast and has a CD triangle. Nihilus has a speed set.
