Natsu Dragneel

200% boost to Atk, 100% boost to max HP and greatly boosts critical hit rate of Fire types, Spark damage boosts BB gauge, hugely boosts critical damage, enormously boosts Fire elemental damage & 15% damage reduction from Fire, Earth, Dark types

25% damage reduction from Fire, Earth types, raises Atk parameter limits to 130000, 10% damage reduction & adds huge max HP boost effect for self to BB/SBB when Atk Boosting sphere is equipped

BB

Crimson Phoenix Blade Lv. 4

2 DC23

27 combo massive Fire attack on single foe (damage relative to remaining HP), adds Def ignoring effect to attack for 3 turns, greatly boosts max HP, adds 1 extra action within the same turn & fills own BB gauge to max

SBB

Crimson Phoenix Blade Lv. 5

1 DC35

37 combo powerful Fire attack on all foes (damage relative to remaining HP), 4 combo massive Fire attack on single foe (damage relative to remaining HP), enormously boosts Atk, Def, Rec relative to max HP for 3 turns, boosts critical damage of Fire types for 3 turns, considerably boosts own Atk, Def, Rec for 3 turns & enormously boosts own critical hit rate and Spark damage for 3 turns

UBB

Crimson Phoenix Blade MAX

1 DC33

40 combo massive Fire attack on all foes (damage relative to remaining HP), 4 combo massive Fire attack on single foe (damage relative to remaining HP), enormously boosts critical damage for 3 turns, enormously boosts max HP, enormously boosts Atk, Def, Rec relative to max HP for 3 turns & enormous damage reduction for 3 turns