Think about the strongest cards in your deck
Partner (You can have two commanders if both have partner.) Partner (You can have two commanders if both have partner.) Legendary Creature - Wizard Goblin Livio, Oathsworn Sentinel : Choose another target creature
Hakka, Whispering Raven might let you scry 2 when it hits an opponent, but it also bounces to your hand so you'll likely only get to do that every other turn at best
Kynaios and Tiro of Meletis Four colour commanders naturally allow for so many combinations of cards and strategies that just about any one of them is fine for anything
Of course, savvy players will know that you probably have cards like Netherborn Altar and Command Beacon to get around this issue, but this commander is still good for an initial laugh
Example List: Dredge | Modern | Xerk, MTGO League 5-0 Creatures (19) 2 Bloodghast 2 Ox of Agonas 3 Golgari Thug 4 Narcomoeba 4 Prized Amalgam 4 Stinkweed Imp Sorceries (18) 2 Conflagrate 4 Cathartic Reunion 4 Creeping Chill 4 Life from the Loam 4 Thrilling Discovery Artifacts (4) 4 Shriekhorn Lands (19) 1 Mountain 1 Blood Crypt 1 Copperline Gorge 1 Forgotten Cave 1 Mana Confluence 2 Arid Mesa 2 Gemstone Mine 2 Sacred Foundry 2 Stomping Ground 3 Bloodstained Mire 3 Wooded Foothills Sideboard (15) 2 Ancient Grudge 1 Blast Zone 1 Darkblast 3 Deafening Silence 1 Leyline of Sanctity 1 Leyline of the Void 3 Lightning Axe 3 Nature's Claim Back to Normalcy As I said last week, it feels awesome to feel like Magic design is settling back into a more normal flow