Pseudo tank Lissandra

Psuedo tank lissandra is OP OP am i right? (Lissandra ults herself + Zhonya)

Inb4PBEpatchnoteslooklike:

Frozen Tomb: ACTIVE: Lissandra encases the target enemy champion in ice, stunning the target for 1.5 seconds. Dark ice then spreads from Frozen Tomb's target and lasts for 3 seconds, dealing magic damage to all enemies in the area as it expands and Slow icon slowing them while they remain within.

Lissandra can no longer ult herself.