Board Thread:Episode Discussions/@comment-1181222-20180628114154/@comment-25122992-20180629103813

I guess, because Urashiki didn't need to incapacitate Gaara in the train for any reason, while during the attack on the stadium he specifically said he wouldn't let Mitsuki use his powers against them because they're dangerous, so it'd make sense that Mitsuki was drained more heavily than Gaara. Plus, Mitsuki is still a child, while Gaara is already an adult Kage-level shinobi.