mtg cards that give shroud Shroud: How Does It Work? put a coin counter on another target creature Shroud in MTG - Rules,

Anytime you cast a spell that would trigger a prowess effect, Bria will make one of your creatures unblockable for the turn, letting you sneak in commander damage or even just regular damage through enemy lines

Her +1 to shoot your team up and anger them into trampling over any who would dare stand in their way is also very strong, and plays well with the Wolf-making earlier

Permanently exiling a creature you control asks for trouble, though Im opening to being too low on this out of fear

The counters certainly matter if your tribe can double up the bonus under a Hardened Scales or similar effect and a colorless lord adds flexibility to multi-color tribes