Some more very useful abilities we can add:
-It seems Aquas Bakugan like Sirenoid, Juggernoid and Preyas naturally have pocket dimensions made of water for them to slip into at their own convenience. Because when they uses certain abilities, like Dive Mirage and the Deep Sea Dive ability, they create and slip into a pocket space that's an ocean. And they can use this for offensive purposes such as dodging enemy attacks, and then they can reappear out of it at will. Its similar to the Phantom Force/Shadow Force moves from Pokemon.
-Another interesting ability from Sirenoid. From how it's used in the anime, her Anthemusa ability creates a portal in water that leads to a random universe/dimension. The ability then generates a special sound/song for her opponents to hear and if they hear it, the song forces them against their will to walk straight into the portal and into that realm, as demonstrated when she did it to Preyas. And the victim is unable to move in that realm.
-Immunity to Dimensional BFR is also a thing. Wavern was nearly going to be sent to the Doom Dimension by one of Masquarades Gate Card effects and with her ability Big Bang Blaze, she stopped it completely and was safe from being sent to the Doom Dimension.
-Something i've noticed in the series. It seems when Bakugan either grow stronger or evolve, they don't just gain new abilities out of nowhere. They actually modify and upgrade old ones into new ones as well. We see this many times, such as when Drago evolved, Hydranoid evolved, Wavern tapping into the Infinity Core, Drago tapping into the Perfect Core and so on. Especially in the Wavern example. One of her ability cards started glowing and the words, stats and everything on it was rewritten, changed completely and then became the Shining Pyrus ability. Infinity Drago did the same thing when using Dextra Attack and the ability card had all of its info rewritten on a blank card Dan took out. Would this count as a sort of Information Manipulation?
-Purifying an opponent's attack and using it back at them like it's your own is also a thing. Wavern did this via her Shining Pyrus ability which allowed her to take all of the attacks Hydranoid hit her with, purify them with the power of the Infinity Core, and then send all of those attacks back at him to win the battle. Wavern herself also says this can be done with just the Infinity Core alone as well.
-Evil Purification and being able to take away someone's will to fight. It's stated multiple times that the positive energy of the Infinity Core can purify those who are tainted with Negative Energy from the Silent Core and bring them back to them old-selves. And the negative energy can either make victims go savage and wish to do battle or they become evil like Alice/Masquerade and Dr. Michael/Hal-G.
-Possibly more Causality Manipulation implications. In one episode when Wavern is in pain from Naga trying to contact her, she bounces around in her ball form and breaks a vase into tiny pieces with water spilled all over the floor. But then when the light of the Infinity Core leaks out, the vase instantly returns to what it was before she destroyed it. There's also an episode where Skyress was close to death due to Hairadee's ability giving her great damage but she was brought back via Tentaclears Gamma Ray ability which nullifies the effects of his ability. So it nullified the damages Skyress got and healed her. It's somewhat similar to Orihime Inoue's Soten Kishun ability to reject injuries.
-Possible Conceptual Manipulation. When the Original Dragonoid created Vestroia, he also created the combined core of Infinity and Silence. And they are specifically considered the "Sources of all Positive and Negative energy". So in other words, the Original Dragonoid when creating the core and Vestroia created the concepts of Positive and Negative energy. And Drago himself became Vestroia's core so he'd also become Positive and Negative energy itself.
-Possible Void Manipulation- IIRC, Code Eve existed in a void from the beginning like she did in Season 3 and it was there she brought both Dragonoid and Dharaknoid into being. But this isnt where the ability would come from. Dragonoid and Dharaknoid both split the fabric of this void into 2 separate dimensions they created. I could be wrong but if this is true, would this be Void Manipulation?
-Immunity to their own Element- All Bakugan lived in 6 attributed worlds in which the entirety of them was literally just their element. Like how Drago lived in Pyrus Space and that world was nothing but a space of pure fire. Since they lived there naturally they arent affectd by their space's environment. To further support this, Nova Lion himself told Dan that since he was a Pyrus Bakugan, him sitting in anything fire related like Lava would be like "taking a bath".
-Using the Ability Counter move, which can apparently either nullify or reset any ability completely back to before it was activated from how its used in the anime. Rabeeder used this to counter the pocket space created by the Deep Sea Dive Ability she was in and got rid of it entirely, putting everyone back in the real world.
-Phasing- Sirenoid can literally swim around in solid ground.
-Can stop an opponent in their place along with their attack completely by freezing time around them with the Freeze Jail Ability.
-Can trap beings inside their own memories. Wavern teleported herself, Dan and Drago inside the memories of both in order to find a clue from when Code Eve gave Drago her powers.