Strategy I used from ptr and all 10 weeks on live servers before I got all my pets.
- Voodoo figurine - Wild magic, Rot (new undead ability, turn target to undead), swap on 2d pet
- Prairie dog -Comeback*3 or Comeback*2+Chomp, swap on voodoo
-Voodoo figurine - Wild magic, Rot, - voodoo dies. if no, shadow slash - voodoo dies, if no swap on 3d pet
- Yellow-Bellied marmot - Chomp or Comeback (your design about risk to miss and Chi-chi hp left)