Consider its card type, any effects that modify when you could cast it (such as flash) and any other effects that stop you from casting it (such as from Meddling Mage's ability) to determine if and when you can do this
Most of the best knights can be found in black and white, with additional good ones in red
She's amazing in any of the 99 of any landfall deck as well as the leader too, since most landfall stuff is Mono-Green
(2023-02-04) If a player or permanent has more than one kind of counter on it, and you choose for it to get additional counters, it must get one of each kind of counter it already has
Mind Rot is to Blightning as Murder is to Unlicensed Disintegration, at least in the right deck
If you recall from my recent Modern Horizons 3, Top Ten (it's here -Top Ten Cards from Modern Horizons 3 | Article by Abe Sargent (coolstuffinc.com)) at my #2 spot was the Flare cycle, and I named Flare of Cultivation new Cultivate that can be free the clear best of the cycle