Would this Vaal Pact + High Lifesteal build work?

This is all Theorycrafting.

I was wondering if a high lifeleech Marauder with the keystone Vaal Pact would be viable endgame. 30% life leech is easily achieveable with carnage heart + gem + lifesteal equips.

Build would look something like this :



Weapon to be used would be 2h mace. Armor should be leech / resists / armor/ hp. Flasks would be all granite flasks. Spells to be used would be sweep/ heavy strike / enduring cry.

Playstyle would be using granite flask / enduring cry and just standing and sweeping the mobs. Heavy strike to be used against single targets.

Would this work or would a char built like this be killed too fast.