Chromastone

{2}: Chromastone gains protection to a colour of your choice, if Chromastone is to be dealt damage and protection prevented that damage put X Charge counters on chromastone equal to the damage prevented.
{2}: when a permanent is being targeted by a spell, you may instead have that spell target chromastone.
Remove X charge counters: deals twice X damage to any target, you may only do so once per turn.