There's probably nothing worse in Wildcard than 3stack Mirage, where each of them wears the same skin... Even three Caustics can be pushed away from a building, but when you have 3x Mirages who use their ultimate at the same time, it's better to just leave the game. It's just not fun.
The "Wildcard" mode itself is a good idea, but there are some features that ruin the game's overall feel. Like the recent mythical R99 or now the swords. These are weapons that have no countermeasures. Charged sword kill me in two hits... XD
Furthermore, charging it near enemies works better than Crypto's ultimate, because it removes the entire shield, not 50 points (like Crypto's). This is so OP that I can't understand why it was implemented and what its purpose is.