No amount of testing they do in R&D is ever going to stop everything. Oko seems egregious because everyone in the pro scene recognized he was very good immediately, which means he should've been recognizeable in THAT manner to R&D and been tested fucking thoroughly.To be fair, the same could be said for any busted card in the game. So many things are possible and legit in magic, which is why it's infinitely fun, but allowing people to do tricksy shit for no mana cost or have a card early in the game that is essentially giving them infinite value and incredibly hard to remove is BS.
Yeah, no card should go out without proper testing. Last minute changes, before realizing what it actually is until people get their hands on it and then taking an even longer time to ban is is a horrible practice.
Like, just wait for the next set if a card isn't ready. There's no easy way to take shit back but there sure as hell is an easy way to not leave shit like this happen as often.
Like, I believe shit will slip through,m it's just inevitable, but Oko didn't take like thousands of manhours of play to realize he was stupid. People called that he was 'very good' just from previews.