You can obviously run Curiosity too, but Commander is all about synergy
Card players have an incentive to drag others into the hobby (sometimes kicking and screaming), and its great to have a friend who can guide you when learning a new game, but that isnt a one-size-fits-all solution
I'm in five colors so I can run any lifegain combo I want to run
Creature - Warrior Merfolk Color tag templates(None) Mistblade Shinobi Ninjutsu ( , Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever this creature deals combat damage to a player, you may return target creature that player controls to its owner's hand
However, if you control a Commander when you cast it, you may choose both options
Just severally let down by being inconsistent and on the narrow side