This is a pretty good deal if you have items that you dont need anymore or can recur later in the game
So, with this in mind let's take a look at the three colour cards in Commander and judge their viability in the format with a classic letter grade, starting with Abzan

Scientists Abandon Attachments Abomination of Gudul Academic Dispute Academy Elite Academy Raider Academy Wall Action News Crew Adventurer's Airship Agna Qel'a Agonasaur Rex Airship Crash Akki Ronin Akoum Flameseeker Akroma's Blessing Akroma's Vengeance All-Seeing Arbiter Altanak, the Thrice-Called Amber Gristle O'Maul Ancestral Reminiscence Ancient Excavation Angel of the God-Pharaoh Angelsong Anje Falkenrath Anje, Maid of Dishonor Anvil of Bogardan April, Reporter of the Weird Arcade Gannon Arcane Subtraction Archfiend of Ifnir Architects of Will Archive Haunt Arm-Mounted Anchor Arterial Alchemy Artful Looter Artificer's Epiphany Artist's Talent Artistic Refusal Ashling, Flame Dancer Ashling, Rekindled Assassin Gauntlet Astonishing Spider-Man Astral Drift Asylum Visitor Atemsis, All-Seeing Atlantean Skirmisher Aura Extraction Avian Oddity Avishkar Raceway Awaken the Honored Dead Axiom Engraver Azra Oddsmaker Backslide Bag Check Bag of Holding Bandit's Talent Banon, the Returners' Leader Bant Sojourners Baral, Chief of Compliance Barkhide Mauler Baron Strucker, HYDRA Overlord Barren Moor Barrier Breach Basri, Tomorrow's Champion Battle of Frost and Fire Battlefield Scavenger Bedlam Reveler Belligerent Guest Bellowing Crier Beneath the Sands Benthic Biomancer Big Score

* Note: This is the English Version* Significantly boost decks themed on the Whole Cake Island and Fish-Man Island Arcs
and JustInBasil for the translations
Tapu Koko EX isnt too bulky (130 HP) when you consider the HP standards of modern EX cards in Pokmon TCG Pocket