A common criticism of stax is that the archetype is uninteractive. While some prominent stax pieces lead to non-games, especially when accelerated, I find them to be highly interactive
In most cases, a copy ignores any temporary changes to the object, and is created with only the printed qualities of the original, which are called the "copiable values"
I dont like when cards are this easy to turn into infinite combos, and I really dont like infinite combos to begin with
Desynchronization is a reasonable include if youre in blue and either all in on artifacts or legends-matter (or I guess if youre that one Atraxa Sagas player)
Initiate of Blood / Goka the Unjust Initiate of Blood has an interesting tap ability, but the drawback here is that the target needs to have already been dealt damage this turn
Vren's effect triggers on every end step, not just your own, so you can generate a ton of Rat tokens without having to use your removal only on your turn