If we look at some higher-cost creatures, you can also make a bunch of copies of Hullbreaker HorrorHullbreaker Horror to keep your opponent's boards permanently empty or even Brainstealer DragonBrainstealer Dragon to play all of your opponent's decks instead of yours
And just because your artifacts don't tap for mana as lands, that doesn't mean you can't use Chromatic LanternChromatic Lantern to give them that ability
Murmuration (BLC) $10.00 We're starting off at the $10 mark with Murmuration, which looks like a card that goes in a bird typal deck
The Construct for jumping through these hoops is a 10/10 which will win the game in two hits, and it has flying, vigilance, trample, lifelink and haste
You wont always need a board wipe, so you can always cast it for one of the cheaper modes if theres a problem that needs to be dealt with, but I definitely dont mind destroying all tapped creatures for six mana at instant speed
The main reason I do not rank this better is its reliance on other cards to really plow into wins