In this column, I indicate which colours were affected by the error
The fixed nature of these systems creates a consistent environment where every card has its place, reducing time spent searching for specific pieces in your collection
8 Energy Removal Energy Removal is a very effective card for gaining control over your opponent
When an attack is declared involving another "Battlin' Boxer" monster you control: You can detach 2 materials from this card
Then for the symbols of mana it's the common: wubrg for white, blue, black, red, green
Unfortunately, in competitive formats, Heroic Intervention isnt played nearly this much, however, thats no reason to dismiss its power