The second triggered ability is hugely important among soldier decks because running out of cards is tough, and encouraging you to gain life is a good strategy with soldiers
Faithless Looting, Frantic Search, or Survival of the Fittest all involve discarding in exchange for new cards or tutoring
Ramp and board presence, in addition to a bigger graveyard
Thrum of the Vestige Getting blown out by a single is going to feel rough, so watch out with your Blitzball Shots
I think the reason why I decided to go with Doublade is that I really like its design (Aegislash is one of the best Pokmon ever, I don't admit a contrary view) and because I think that having viable one-prize attackers is really cool for the game
5-cost Charlotte Perospero s Activate: Main trashes a card from your hand and then lets you guess the cost of the top card in the opponents deck to activate his effect, drawing you a card and adding 1 Active Don from your Don deck