Being blisteringly fast in game one is usually the goal, but Hammer players can add a ton of interaction depending on what the match up calls for once they get access to their sideboard
Sure it's not as durable and can't give +1/+1 counters to enchantments, but it has lifelink itself, and costs one less to activate, along with a cool party payoff
The MSRP for play boosters is consistent for each set and usually between $5 and $7 whether you get the 30-pack in Aetherdrift , an upcoming set, or the 36-pack booster box of Foundations
Your tactics will vary depending on the cards drawn into market
There's no direct drawback for you, and lots of upside once you hit delirium
Angels synergize well with Humans, and Herald can reduce Sigardas tax, if nothing else