I haven’t had much experience fighting him but from the three matches I played at Stage 2 his mortars can basically chop three quarters of your armor in one shot. I do love his abilities but holy hell that mortar feels too powerful even against the Behemoth.
The trade off is the aiming. There is a delay after he fires them before they land as well. You really need to be good at leading the monster to be effective at using them.
Please keep T4 discussions in their appropriate threads. Thanks!