Further Upgrades The first cards I'd pick up to further juice up the deck would be untapped mana-fixing lands: Watery Grave, Shipwreck Marsh, Underground River, Morphic Pool, Darkslick Shores, Polluted Delta, Sunken Ruins, Undercity Sewers, Urborg, Tomb of Yawgmoth and then maybe a couple more Island / Swamp fetches
If you haven't gained life during the turn when your end step begins, Lunar Convocation's first ability won't trigger at all
I dont have a ton of experience with them online, but I did have good experiences buying from their booth at GPs
Despite being underwhelming from a power level standpoint, Grizzly Bears has been printed across over a dozen sets and even inspired numerous functional reprints, including Balduvian Bears, Forest Bear, Runeclaw Bear, and Bear Cub
As it stands, though
Commander is often a reason for friends to hang out with each other, and playing something straightforward allows room for the conversation to flow