The problem is having to rely on having the land in hand for this to work
Other than violently stripping your opponents lands, you could instead look at Flametongue Kavu, Pyrogoyf, Inferno Titan and the like, and play a lot of haste enablers
Theory crafting is important because it keeps you ahead of the meta
If you were to have a land type count as that color instead, you would allow Mtenda Lions and such, but disallow many more things
(6/6/2025) If you put an Aura on an opponent's permanent, you still control the Aura, and mana symbols in its mana cost count towards your devotion

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