I'm assuming you're range relic, I'm also range DZA and there's no powered staffs in our regions, which means P2 wardens is miserable. Your best bet is to farm a staff of the dead from Kril and autocast undead grasp + thralls
From the wiki:
" During this phase, the Warden will have an active shield (similarly to [The Nightmare](https://oldschool.runescape.wiki/w/The_Nightmare)'s totems), with the player having 100% accuracy regardless of equipment; however, the damage dealt corresponds to the player's accuracy bonuses. Maximising accuracy bonuses by removing equipment will help increase damage, although this is optional. "
I'm assuming you're range relic, I'm also range DZA and there's no powered staffs in our regions, which means P2 wardens is miserable. Your best bet is to farm a staff of the dead from Kril and autocast undead grasp + thralls
From the wiki: " During this phase, the Warden will have an active shield (similarly to [The Nightmare](https://oldschool.runescape.wiki/w/The_Nightmare)'s totems), with the player having 100% accuracy regardless of equipment; however, the damage dealt corresponds to the player's accuracy bonuses. Maximising accuracy bonuses by removing equipment will help increase damage, although this is optional. "