One-of-Many Strategies for Family Fighter
These are simple strategies to defeat One-of-Many for the Family Fighter achievement. Note that you can fight all these pets regardless of whether their world quest is up or not, so you can grind out the whole achievement in one day if you really want to. These strategies assume all of your pets are level 25 and of Rare quality.
Three rabbits/hares with speed more than 281, with Scratch, Dodge, and Stampede.
Dodge. Stampede. Scratch three times. Next bunny comes in. Scratch. Dodge. Stampede. Scratch twice. Dodge.
Amplify Magic. Mana Surge. Pass. Life Exchange. Swap to Wisp. Evanescence. Arcane blast three times. Switch to Mindslayer. Life Exchange. Mana Surge. Bring in the Wisp. Arcane Blast. Evanescence. Arcane Blast until the Wisp dies. Finish with Mana Surge.
Ash Viper (or any beast with >281 speed and Burrow)
Zandalari 1 (>289 speed and Black Claw, Hunting Party, and Leap)
Zandalari 2 (same)
Burrow. Switch to Zandalari 1. Black Claw. Hunting Party. Leap until Zandalari dies. Switch to Viper. Do ANYTHING but burrow until Cannon comes back up. Then Burrow. Switch to Zandalari 2. Black Claw. Hunting Party.
Dodge. Switch to Benax. Bubble. Swarm of Flies. Switch to your random frog. Healing Wave. Tongue Lash twice. Switch back to Benax. Swarm of Flies. Tongue Lash. Bubble. Tongue Lash twice. Switch to Elver. Dodge. Deep Bite. Dive. Deep Bite twice. Dodge. Deep Bite. Dive. Pass.
Lift-Off. Switch to Nether. Arcane Blast twice. Life Exchange. Arcane Blast. Bring back Yu’la. Lift-Off. Switch back to Nether. Life Exchange. Arcane blast twice. Bring back Yu’la. Celestial Blessing. Lift-Off. Switch to Nexus. Arcane Storm. Mana Surge. Arcane Storm again if he still has health. Pass.