I was dubious, to say the least (Ive never been a big fan of vehicles in Magic, and this felt similar), but after playing with one of the Edge of Eternities precons for the past few weeks, I have to admit that its an excellent deck
Think of her as a card draw anthem, and a nice free tutor for a way to double that draw, because thats what shell do most often
Obviously, this won't break the format, but it will make certain decks stronger
(2019-11-12) If a player chooses targets for another players spell or ability, or if targets are chosen randomly, they dont have to target a Flagbearer
I appreciate that its a mana dork itself instead of just enabling other cards to produce mana, and your opponents have to kill this glimmer twice