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Griffin Aerie is an enchantment that you cast for 1 and white, as revealed in Magic: The Gathering Core Set 2021 spoilers. The enchantment boasts an extremely fun effect. When your end step rolls up, if you gained 3 or more life during the turn, you create a 2/2 griffin creature token with flying. On top of that, the art depicted on the card is very pleasing and the flavor text is enjoyable to read.
Griffin Aerie in Standard
Griffin Aerie can potentially be an extremely good addition to any white deck based on life. White Weenie decks are often based on this theme. To be fair, with Ajani’s Pridemate rotating out along with a few more great white cards, this endeavor might prove impossible. In a low-powered format, this card is extremely fun and is potentially an incredible value engine. However, it will most likely not see much play in Standard as it is right now.
Viability in other formats
There are many cards like this in Commander. Many of them are much better than this; however, there is no reason not to make this another one of your 99. In Selesnya decks you can make use of doubling season and similar effects. On top of that, the tokens benefit from lords that buff flying creatures.
Griffin Aerie will most likely see no play in Modern or Legacy. It just does not do anything from the get-go and does very little in the turns to come.
In Limited, Griffin Aerie is a mixed bag. With Sanctum of Fruitful Harvest, you can generate superfluous amounts of mana. It can be incredibly valuable if you have ways to regain life. On top of that Selesnya promises to be quite a threatening color pair in limited. To be fair, they are relatively plentiful in the spoilers so far and come in colors other than white, making this relatively splashable. However, the card does nothing on its own, and if you do not have at least 6 or 7 different ways of gaining life, it is just not worth playing.
Stay tuned to Daily Esports for more Magic: The Gathering Core Set 2021 spoilers.