It just seems he does such absurd damage to you that it's a race to put him down.
Mario Jumped and mallow defended unless he was healing mario or FP for more jumps.
To be clear when I said I was doing it kind of a low leveled it's not in a disciplined way or anything. Just not killing every enemy in sight like I normally. I'm at Belome 2 around level 11, and it's the first boss that I actually couldn't beat after two or three tries because he just spams party-wide sleep spells (decided not to use accessories because it felt too cheap at first but now it feels cheap for the boss!)
It wasn't a low level run but I've done a challenge where I didn't use any equipment or items. There's actually a boss later on that can completely lock you down if you have no status protection at all.
Dodo 3?
Megasmilax is set to use Petal Blast every 3 turns. Every time you get hit by it, the status counter resets. It can miss but the attack is pretty accurate. If you don't have status protection, your entire party gets turned into Mushrooms forever. ---
This was not the best year for my bracket. Congrats to BK_Sheikah00 for winning the BYIG Guru Contest!