2 total mana to exile an attacking creature is a fine rate, but your opponents wont want to attack you with this in play
Things buried on Innistrad rarely seem to stay that way
Despite the effect of transforming Battle being a triggered ability , its controller exiles the permanent and then casts it without paying the mana cost , opening up space to interact with Battle on the stack with Make Disappear, or other counterspells, or even to bounce them on the stack, with Venser, Shaper Savant and the like
Before you begin your adventure, check out these guides to help decide your Starter and their Nature: Boulder Badge Walkthrough You must journey through Viridian Forest to Pewter City, where you'll need to fight Gym Leader Brock to earn your first Gym Badge
Using self-mill or looting effects to put more Approaches in your graveyard is far more efficient than trying to draw and cast five of them fairly
I had brought a copy of Innistrad would come out to great fanfare, and the double-faced cards were an instant hit