Legendary
Helmet of War
Wondrous Item
(5 actions) Transform into a Huge avatar of war.
Gain 3 actions, a speed of 12, LVL Armor, 10xLVL temp HP and:
Mighty Strikes. Pimary die becomes a d20. On attacks treat dice you roll less than 10 as 10 (up to die size).
War Stomp. 2 actions: (others in reach 3) DC 20 STR save, KEYd20 damage, half on save & prone.
You can maintain this form for as long as the temp HP granted by this transformation remain (max. 10 minutes). When it ends, you drop to 0 HP.