Hitting for one is weak but better than nothing and likely to get through and nibbling loyalty off planeswalkers is pretty good, when equipment comes into the picture however flying becomes outstanding and the low power far less relevant
The three life you gain rarely makes much odds however and on that basis incinerate is the better card (despite helix being less playable in general anyway due to more restrictive colour requirements)
I hope Ive helped you understand Commander a little better, and helped you decide what to build or play with
The level 2 and level 3 class abilities of Gourmand's Talent won't trigger if you already gained life earlier in the turn on which it gained those levels, even if you gain life again later in the turn
Nissa, Voice of Zendikar 7.5 A lovely little token generator
30% of Play boosters (but, interestingly, not Collector boosters) have Art cards, and 5% of Play boosters have art cards with a gold-stamped artist signature or Planeswalker symbol