It's impossible to use on your first turn since you can't load up the Graveyard before using it until your next turn, and by then it's likely too late to make any kind of impact
In particular, Aminatou, Veil Piercer surveils every turn, putting Enchantments into the graveyard where Starfield of Nyx can reanimate them, and Marina Vendrell unlocks rooms for free, turning low-mana-value spells into big-mana-value permanents that Starfield animates into huge creatures
Gyre Sage CMC: 2 A 1/2 isn't so bad for just two mana, and this elf druid has the potential to advance further
For example, "Pot of Greed" and "Guarded Treasure" allow the player to draw 2 cards at once, but each of these effects is only a single draw (for the purposes of cards such as "Solemn Wishes")
ISSN 0362-4331
I think its easy to say that Heartflame Duelist is weaker than a card like Bonecrusher Giant, but that ignores what the card does bring to the table