It can make combat pretty complicated for each of your opponents, and on the plus side, it can also help you to push damage through
And Standard currently has a pretty good diversity and balance of decks
Though he starts with 0 strength, clever timing of actions can really power him up
Teferis Protection White is spoiled for choice when it comes to protection spells, and even some of the cheaper options like Eerie Interlude and Your Temple is Under Attack are more than playable

Decklist Creatures (33) 1 Birds of Paradise 1 Essence Warden 1 Woodfall Primus 1 Mentor of the Meek 1 Great Oak Guardian 1 Gilded Goose 1 Savvy Hunter 1 Prosperous Innkeeper 1 Orchard Strider 1 Tireless Provisioner 1 Sam, Loyal Attendant 1 Mirkwood Bats 1 Butterbur, Bree Innkeeper 1 Generous Ent 1 Landroval, Horizon Witness 1 Rosie Cotton of South Lane 1 Frodo, Adventurous Hobbit 1 Bilbo, Birthday Celebrant 1 Merry, Warden of Isengard 1 Pippin, Warden of Isengard 1 Shire Shirriff 1 Eagles of the North 1 Banquet Guests 1 Farmer Cotton 1 Feasting Hobbit 1 Gollum, Obsessed Stalker 1 Gwaihir, Greatest of the Eagles 1 Lobelia, Defender of Bag End 1 Motivated Pony 1 Prize Pig 1 Rapacious Guest 1 The Gaffer 1 Treebeard, Gracious Host Lands (38) 1 Brushland 8 Forest 4 Plains 4 Swamp 1 Ghost Quarter 1 Murmuring Bosk 1 Exotic Orchard 1 Sunpetal Grove 1 Graypelt Refuge 1 Evolving Wilds 1 Command Tower 1 Isolated Chapel 1 Woodland Cemetery 1 Rogue's Passage 1 Sandsteppe Citadel 1 Scoured Barrens 1 Canopy Vista 1 Fortified Village 1 Ash Barrens 1 Scattered Groves 1 Path of Ancestry 1 Shineshadow Snarl 1 Necroblossom Snarl 1 Access Tunnel 1 Shire Terrace Spells (29) 1 Swords to Plowshares 1 Sol Ring 1 Night's Whisper 1 Well of Lost Dreams 1 Farseek 1 Mortify 1 Harmonize 1 Sanguine Bond 1 Cultivate 1 Go for the Throat 1 Pristine Talisman 1 Trading Post 1 Chromatic Lantern 1 Crypt Incursion 1 Toxic Deluge 1 Commander's Sphere 1 Sylvan Offering 1 Fell the Mighty 1 Anguished Unmaking 1 Fumigate 1 Call for Unity 1 Dusk 1 Dawn of Hope 1 Arcane Signet 1 Revive the Shire 1 Assemble the Entmoot 1 Field-Tested Frying Pan 1 Hithlain Rope 1 Of Herbs and Stewed Rabbit New Cards

Tapping Delighted Halfling to cast your Commander also makes your Commander uncounterable (just like Cavern of Souls), and it is especially vital if your Commander is your win condition or an outlet for you to win