You can go the reanimator route using green discard tools like Survival of the Fittest
Chaos Chaos decks simply do not want a normal game of Magic , but rather, they want permanents switching sides, spells getting copied at random, attacks going in random directions, and everyone asking whose turn it is
A confirmation email may not appear for a while, so keeping a personal record is prudent
holding one of these is a godsend when Portal to PhyrexiaPortal to Phyrexia hits the field
Later in the game when everyone has some artifacts and enchantments it can provide you with a huge infusion of mana you can use or save as needed, and lets not forget that sometimes what youre looking for are a bunch of tokens themselves
This is mainly because of how easy it is to untap an artifact without having to follow all the stipulations laid out on Time Vault itself