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Set: Titan Masters Attack
Number: 042
Rare
0★
When the ugpraded character attacks and has 3

or less 🠪 Untap it and scrap this card.
What are Hybrid Battle Icons?
Some battle cards in this set have a new style of battle icons: hybrids. These battle icons have a both a color and the symbol of a trait. For example, the battle card Nitro Booster has a black Car battle icon. Hybrid battle icons always count as their color, except if they're flipped in battle for a character that doesn't match their trait, that battle icon will have no effect that battle.
Source: Wave 5 FAQ
How does Nitro Booster work?
When the upgraded character attacks, before you flip any cards and before your opponent triggers any 'when this defends' abilities, you look at the characters current attack value. If it is 3 or less, then you untap the character. Any additional attack you gain after that, be it via other 'when this attacks' options like Paralyzo Box, orange battle icons, or another effect, do not matter because they are added after the attack. Even though your character is untapped, it continues to get to do its attack.
Source: Aequitas Rules Roundup 2020-11-11