This is pretty good in itself but also, it gives vehicles and creatures entering the field a 1/1 counter if they have a mana value four or less
This was pretty disgusting and, as the degenerate I am, I also played this while it was legal
While not repeatable in the same way Time Vault is, Time Walk doesnt require other cards or hoops to jump through to cast
you'll need a way to cast them for an alternative cost or without paying their mana cost, such as by suspending them
They're usually made using Collector's Edition power, by splitting each card and posting the Collector's Edition front onto a real Magic card back, thus giving the appearance of "real" power
Pay particularly close attention to the commons and uncommons in a set