All of these calcs were done with the UU Double Dance set for Iron Crown (the biggest issue), The UU Stealth Rock set for Ttar, UU Defensive Mandibuzz, Battle Bond Greninja, and OU defensive Skeliderge. Here are my calcs:
+4 0 SpA Iron Crown Tachyon Cutter (2 hits) vs. 252 HP / 252+ SpD...