Nitro Warrior

Edison Card Text
"Nitro Synchron" + 1 or more non-Tuners
① Once per turn, during your turn, if you activate a Spell Card, this card gains 1000 ATK during its next attack (during Damage Calculation only).
② Once per turn, if this attacking card destroys an opponent's monster by battle:
You can target 1 face-up Defense Position monster they control; change that target to Attack Position, then this card can make a second attack in a row, on that monster.
Targets
Note: the second effect
Damage Step • Substep 7
Banlist • Unlimited
Interactions
How many attacks can Nitro Warrior make in one turn?!
Nitro Warrior destroys a monster by battle and tries to attack again.
It can only make one additional attack per turn, so it cannot clear an entire board.
If Nitro Warrior is taken with Brain Control, does the opponent get the ATK boost?!
Nitro Warrior is under Brain Control.
No. Nitro's effect only applies while controlled by its owner.
Rulings
edisonformat.net
● Attack Declaration still happens for this card's second attack with its ② effect.
edisonformat.com
(1) Once during each of your turns, if you activated a Spell Card, this card gains 1000 ATK during its next attack, for damage calculation only. (2) Once per turn, if this attacking card destroys an opponent's monster by battle, you can change 1 face-up Defense Position monster your opponent controls to Attack Position, and attack it with this card.
The (1) Continuous Effect applies in Substep 4 - Damage Calculation.
If the Spell Card was activated before "Nitro Warrior" was Summoned, this effect does not apply.
The (2) optional Trigger Effect activates in Substep 7 - End of the Damage Step.
This effect targets a face-up Defense Position monster your opponent controls.
If the target is flipped face-down / leaves the field, you do not make a second attack.
You only gain 1 additional attack with this effect. "Mirror Force" can be activated in response to that additional attack, and if "Toll" is active you must pay 500 Life Points.