The best use-case is to simply play an evasive creature on turn 2, then you can play Tymna on 3, attack, and immediately draw a card
1 mana to give all your creatures haste puts a dangerous clock on life totals as you build up an army of huge threats
Card values are likely to fluctuate heavily over time, but the launch of the expansion in local game stores is as good a time as any to look at the market
Amethyst and Steel may feature some fantastic cards, but its lack of beefy characters means it may struggle against other starter decks
If, for example, you sacrifice Edgar to pay an additional cost of the spell or Edgar is destroyed in response, the spell will still resolve normally
Summon: Primal Garuda It may go away in a couple of turns, but at least it killed a creature before doing so