Attack ideas for a boss

um they’re pointy?

would I add small spikes, or maybe add tipped over coolant

hmm idk your choice

a barrier that activates when he summons sentrys then you have to knock out the sentrys that increments a counter that resets when reached target value and when it reaches its target value it deactivates the barrier ( the target value is the nuber of sentrys )

A tornado or a bomb rain attack.