Natsu Dragneel

150% boost to Atk, 60% boost to max HP and greatly boosts critical hit rate of Fire types, Spark damage slightly boosts BB gauge, greatly boosts critical damage & greatly boosts Fire elemental damage

25% damage reduction from Fire, Earth types & adds slight max HP boost effect for self to BB/SBB when Atk Boosting sphere is equipped

BB

Crimson Phoenix Blade Lv. 1

2 DC23

16 combo powerful Fire attack on single foe (damage relative to remaining HP), adds Def ignoring effect to attack for 3 turns, boosts max HP & fills own BB gauge to max

SBB

Crimson Phoenix Blade Lv. 2

1 DC35

20 combo powerful Fire attack on all foes (damage relative to remaining HP), 4 combo powerful Fire attack on single foe (damage relative to remaining HP), greatly boosts Atk, Def, Rec relative to max HP for 3 turns, slightly boosts critical damage of Fire types for 3 turns & considerably boosts own Atk, Def, Rec for 3 turns

UBB

Crimson Phoenix Blade Lv. 3

1 DC33

24 combo massive Fire attack on all foes (damage relative to remaining HP), enormously boosts critical damage for 3 turns, hugely boosts max HP, enormously boosts Atk, Def, Rec relative to max HP for 3 turns