Damn... to charge Holy Cross, you attack with a Melee weapon, HOWEVER, to use Holy Cross, you have to CAST or have a cast charm either Main or ACC slot... Well for it to be effective, you need +Intelligence items, however while melee attacks to be effective, you need either Str / Dex and EE on the weapon? hmm.

It is do-able, however, you need fucking Super Super Sexy items like 55 Int + 220 ee weapon, 55 Int + 220 ee armor with Magical and Physical damage reduction @ 8% + ... your main charm could be 220 EE + 55 in three Stats (Dex / Str and Int) either Heal type or casting type.. but use the 270% EE cast charm while using Holy Cross.

Basically you need to play this game for like 50 years to even get 2 of those items.

I solo Hardcore with a Paladin, I am currently level 66 and use only two abilities: Salvation and Revenge... as for the other comments saying that Revenge is crap, they don't know shit because they are still noobs using single weapons and NOT heavy weapons in conjunction with that ability... so they should just stfu.