And talking about Colossus, I don't consider single-color protection creatures that bad for the environment - they reward sideboard-mindful picks and punish mono colored decks (which are rare anyway, but I find them dull)
Be realistic, be upfront, and be willing to haggle
Helldozer Helldozer isnt the most efficient creature in terms of rate and size, but if you can activate twice each turn to nuke two nonbasics, maybe your opponents will be pressed to do something about it very quickly
For a long time Winter Orb and Armageddon were considered standard tools of the trade in Magic , but the only reason they seemed normal was because they had always been around
Equip your creatures with Cloud, Midgar Mercenary, and strike fast with Lightning, Army of One while Tifa Lockhart and G'Raha Tia, Scion Reborn make your hits strike home
Emry, Lurker of the Loch One of the best affinity commanders, Emry, Lurker of the Loch is a great artifact commander that easily comes down on turns 1-2