I think it's a card that can be included as an option as a general-purpose rank 6
Boromir also having vigilance, decent enough stats, and that whole other second ability (which is fantastic) makes me believe this should be a Brawl staple right quick
Theyre easy to store
When each angel knight deals combat damage to a player, you'll get some combination of Treasure, lifegain, and card draw depending on your resources compared to your opponents
That's hyper efficient, and while it discards energy, forcing you to commit all your eggs to one basket if you want to keep using it, what's really interesting is that the attack uses colorless energy
I will no longer use anything else Maybe it's just me, but i much prefer a perfect fit on my pokemon cards than a loose sleeve, even for storage