Ehhh, but we're not regurgitating fan info from Wikia.The majority of these statements come from the official Bakugan website. The Bakugan Wikia is only for ability cards, and their names, because we can't watch a 4 season anime and jot down every ability for at least 100+ Bakugan.
As for the ability similar to Antithesis, here it is:
https://youtu.be/InUO68c3Mto?t=972
Although it says it absorbs G-Power from ability cards, G-Power is regarded as a gameplay mechanic. So it's technically absorbing the opponent's abilities, and you can use the power gained from them against the opponent.