Build Majin Buu (Good)
Recommended Majin Buu Build
Increases all defense
Core Card

Second Card

Third Card

Situational Third Card

Helper

Karin (Flag): Move towards this Helper while within its AoE. Applies Movement Speed Up to self and allies. The slower the target’s movement speed, the greater the effect.
Situational Helper

Bubbles (Quick Zone): applies Movement Speed Up and Increased Step Efficiency to you and allied heroes when in range.
Build Explanation
With this build Majin Buu (Good) becomes a true backline guardian-healer who can stay alive through focus while keeping the team topped off with Healing Ray. Build Up stacks all defenses through KOs/assists (or 5 NPCs), so every fight your team wins makes Buu harder to burst when enemies try to shut down your healing. Steel Skin further smooths out incoming pressure by reducing damage per hit, letting you survive multi-hit dives long enough to get heals and disruption back out. And Guardian Angel perfectly matches Buu’s support identity by absorbing part of nearby allies’ damage, giving your team more survivability (Defense Step is a good alternative if you find yourself being focused).