Goliath Truck Grond, the Gatebreaker Guidelight Pathmaker Haunted Hellride Heart of Kiran Hedge Shredder High-Speed Hoverbike Hoard Hauler Honeymoon Hearse Hulldrifter Imperial Recovery Unit Imposter Mech Invasion Submersible Irontread Crusher Jackdaw Jetfire, Air Guardian Knight Paladin Kylox's Voltstrider Lifecraft Engine Lumbering Worldwagon Luxurious Locomotive Magicked Card Magitek Armor Magmatic Galleon Marauding Dreadship Marshals' Pathcruiser Mechtitan Core Megatron, Destructive Force Meldweb Strider Midnight Crusader Shuttle Midnight Mangler Mighty Servant of Leuk-o Mindlink Mech Mizzium Tank Mobile Garrison Mobile Homestead Mobilizer Mech Mole Module Mukotai Soulripper Mysterious Limousine N'Yami-Class Mother Ship Nautiloid Ship Necron Monolith Night Scythe Optimus Prime, Autobot Leader Ovalchase Dragster Parhelion II Passenger Ferry Peacewalker Colossus Phantom Train Phoenix Fleet Airship Possession Engine Prodigy's Prototype Prowl, Pursuit Vehicle RMS Titanic Raiders' Karve Rangers' Aetherhive Rangers' Refueler Ratchet, Rescue Racer Reaver Titan Reckoner Bankbuster Recon Craft Theta Renegade Freighter Ribskiff Ripclaw Wrangler Rocketeer Boostbuggy Rolling Hamsphere Rover Blades Royal Talon Fighter Jet S.H.I.E.L.D

For instance, I didn't allow them to have static abilities (save some double-faced card shenanigans) until War of the Spark
For you get a 2/2 that puts a +1/+1 counter on four other creatures, and for you can get a 5/5 that also buffs two others
From the beginning of February until February 22nd, Sickening Shoal consistently sat between $10 and $11 according to TCGplayer market price
Other Equipment might grant abilities such as flying, first strike, trample, haste, hexproof, protection from something, menace and more
Finale of Devastation can also do the same thing, but better