Being able to cast one spell and get another for free helps counteract a few of the problems with this deck, notably its somewhat lacking land base for such big spells, and the deal is made even sweeter with some of the enters-the-battlefield effects you could be unexpectedly triggering
The question is what type of payoff are you getting on playing this in the mid game instead of as early as turn two
Just tap it to search your library for any legendary card and put it into your handit doesnt get much more toolboxy than that
Strangely enough, this treatment was given to Ikoria -related cards in March of the Machine: The Aftermath , but with a new splash of stones surrounding the name and text box
This listing is for a player-built, ready to play Arcades, the StrategistMagic: The Gathering Commander deck
Whether thats a keyword counter, a single-turn effect, or a static effect given by a card