Goblin Chieftain On its own, a little 1/1 goblin token (or even a few of them) isn't that much of a threat
The draft environment is all about playing to the board, so you need to prioritize good creatures and better removal
It would be much better if the ability was something like an ETB trigger
Auras that have card draw attached, like Angelic Gift or Rune of Sustenance, put cards back into your hand, letting you skimp on expensive white card draw spells
Its nice to see space being played with that I havent seen seriously used since Lathril, Blade of the Elves, and this thing is one Wound Reflection away from annihilating the table
Then there are enablers like Elven Chorus, Surrak Dragonclaw, or Mystic Forge that support entire card types