Updated: Now uses a Hydraling instead of a frog, it just works better. Call out to Toosonami, thanks. Have also added a script for those users. Note, script will drop you out of battle if any known fail conditions arise
For non script users. Versus Bruce; if Gnathus does not get in at least one hit, or Hermit Crab dies its a loss, restart.
This is RNG and TRICKY, but I've had reasonable success when repeating it. Bruce's stun is on a 5 round cooldown do your best to have bubble up for it.
Not every strategy can be bullet proof. This is one of them. You might have to restart it, since there are some random elements that increase the risk of your pets failing. Don't blame them, please!
Some instructions are more difficult to follow than others. That's exactly what you might find in this strategy!
The strategy offers a TD script that can be used with the TD Script addon. You can copy the script by clicking on the button to the left of the pets.