Rylais makes you tanky and effect of it stacks pretty well with your Q, also, the effect from iceborn gives your basic better performance in teamfight as you R - E and basic
Tear of goddes just because you are mana hungry and the archangels shield is too op when in combination with iceborn. Also the rylais effect works very well when you ULT everyone in teamfight, they are in disadvantage because of the slowness from rylais. This IS NOT a TROLL build. This is a serious ranked game build in even higher elos.