how do you kill keeper of the clover

Even though I havent been through that stage yet, I hope this guide will help.

Alison280, Keeper of the Clover aren't one of the stages of the Lost Grove, they're the wandering bosses present for the Fortune Festival

ArrancarWyvern, yes, the LG Keepers can be a pretty painful fight if you aren't fully used to the Lost Grove- What team are you using?

ah heck, that doubleposted, apologies for the double ping there

Ah-Oof
Still a bit new to TLG.

my team is shadow-light-fire

okay, those are the elements, but what about the actual pets? Their levels/ stats/ equips/ proficiencies?

(although for the bosses, element-wise it's probably? better to have Air rather than fire, since they're always alone, so you can't stack fire debuff damage (though it would also maybe depend on the attack ranks of the pets.)
I can't remember enough about their moveset off the top of my head, since it's been a good while since I payed attention when I fought one (and I mowed the only one we've found this event down in 27 turns with our in-training team while watching youtube so that sure didn't bolster my memory at all), but we can try to offer aid with more insight to the team being used