I SCH, Embrava the NPCs, and Kaustra the mobs en mass and kite em all with fanatics on.

Anyway you cut it, just AoE'ing the mobs and kiting w/fanatics is usually enough to get a mess of points; the trick is literally just to keep them away form the martello.

Though I agree however, the martello could at the least start with a little more HP than 3%...