1. He doesn't have Shukaku any more.
2. Sasuke had beaten him in speed before and he is way faster now,so he can get instantly him and boom[Amatarasu and finish],for arrow thing he won't even need it bro.
3. He has fire type too and combining it with 2 statement tactic gaara is doom again.
4. well because back then he is a punk infront of gaara[being jin] and because he was restricting the curse mark to tell u the truth,and now he is a shinobi who defeated deidera[the one who defeated gaara],itachi[though i don't actually consider him a winner],make Bee retreat from fight,fought 5 kages , kicked that b@#t*/rd danzo's a@# and have EMS.
Here take an icecream cause u need to cool ur mind.....:ice: