Thanks to the low Warp cost on most cards, this ability is obviously fairly aggressively oriented
Ah, yes, mass land destruction, a sure-fire way to get an opponent to "Leave" the game (chuckling as I write this pun)
Since you can make a copy at instant speed, you can ramp by copying a Sol Ring or an Arcane Signet to have enough mana for an instant spell that can counter an opponents spell or destruction spell targeting a creature
We've talked about how I wanted lands and dorks that self-sacrifice, so you know it'll be loaded with goodies, right
Copies can be had for around $0.30, so Im not expecting great things from this Bonus Card version
You could proxy down to the basic lands, or just add a few proxies to your decks to replace expensive cards