r1: quag, rhyperior, rhydon, camerupt
r2: hitmontop, xatu, mawile, claydol, regirock, mesprit, garbador, musharna, trevanent, shiftry, lanturn
r3: togetic, audino

(if all of the r3 mons are picked before r3, just pick one of the r2 options in order.