Marvel's base power and toughness is equal to the number of cards in your hand." Effects targeting the base power of a creature don't impact the counters on it
Im not sure it has any more room for short-term growth
Ardoz, Cobbler of War Auntie Ool, Cursewretch Ben-Ben, Akki Hermit Breeches, Brazen Plunderer Breeches, Eager Pillager Breeches, the Blastmaker Cam and Farrik, Havoc Duo Daretti, Rocketeer Engineer Fleem, Goben's Creation General Kreat, the Boltbringer Goro-Goro and Satoru Goro-Goro, Disciple of Ryusei Green Goblin Green Goblin, Back for More Green Goblin, Nemesis Green Goblin, Revenant Grenzo, Dungeon Warden Grenzo, Havoc Raiser Grishnkh, Brash Instigator Grub, Notorious Auntie Grub, Storied Matriarch Grumgully, the Generous Gut, True Soul Zealot Hobgoblin, Mantled Marauder Ib Halfheart, Goblin Tactician Ishi-Ishi, Akki Crackshot Kiki-Jiki, Mirror Breaker Krark, the Thumbless Krenko, Baron of Tin Street Krenko, Mob Boss Krenko, Tin Street Kingpin Mizzix of the Izmagnus Mizzix, Replica Rider Muxus, Goblin Grandee Nu and Sumi, Career Criminals Ol' Buzzbark Pashalik Mons Redshift, Rocketeer Chief Rhuk, Hexgold Nabber Rulik Mons, Warren Chief Ruzic, Booed but Victorious Sanar, Innovative First-Year Sanar, Unfinished Genius Shattergang Brothers Skoa, Embermage Slimefoot and Squee Slobad, Goblin Tinkerer Slobad, Iron Goblin Squee, Dubious Monarch Squee, Goblin Nabob Squee, the Immortal The Space Family Goblinson Toggo, Goblin Weaponsmith Tuktuk the Explorer Ultimate Green Goblin Vial Smasher the Fierce Vial Smasher the Fierce Vial Smasher, Gleeful Grenadier Wort, Boggart Auntie Wort, the Raidmother Zada, Hedron Grinder Zo-Zu the Punisher Zoyowa Lava-Tongue
No matter what youre staring down, whether its a Blightsteel Colossus or Scrap Trawler, you can get the best of it by snatching it
