Loxi: Whew, this has the potential to ramp you a lot if you play enough creatures to make sure you can attack reliably with this
You touch on it in your last point, that there are different cases of feel-bad: board wipes, lockdown/hand hate and random luck/cascades are all different causes, but the biggest common factor in feeling bad is that you lose
Works with both sleeved and unsleeved cards for efficient collection management
Titania, Protector of Argoth is another good creature to have out ahead of time
Its the type of commander that you can get out early and likely wont be removed right away, so it can probably do a decent amount of damage
In theory, you can also dip into +1/+1 counter strategies to buff your creature tokens, then copy those using Populate, further increasing those lifegains