In Round 1 I barely saw any Natures, but on Round 2 I see 2 Natures every single time, easy 8/2 so far.
I guess those Natures cleared some trash on round 1 but that won't cut it for Round 2 and finals. If they bring more Natures to the finals it will be the easiest plat ever, My Oguri won't run out of stamina never.