1. It is hard to time your ult to save yourself, and even if you do revive, you don't have enough hp to do much dmg in a fight again. ( the rage bar should not deplete while in combat)
2. Not enough stats when you ult. enemies get away with running away when you ult (the movement speed buff runs out too fast) (also need range and attack speed)
3. if you die after casting your first q, the whole ability goes on cooldown (it should continue on the last q)
4. The ability is called world ender but it doesn't feel like you're ending worlds. His abilities are the same. His q knock up should have larger knock up surface areas.
please upvote so riot sees