For real.
I always wondered why CCGs didn't make the sideboard more of a thing.
We need ways to modify the deck to stay dynamic.
But even with Hearthstone Arena, which was amazing for a long long time, got invaded by a bot that would just tell you how to draft your deck and which card of the three cards given was probably the correct one to pick. No matter what we do a popular game will always get invaded by Sybil attack and strategy bots. The more popular and profitable the game the more incentive there will be to hack it.