You can spend all of your life on your end step to draw a bunch of cards and then exile some of them to free cast as many Soul Spikes as you draw to gain back the life and possibly close out the game
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While it would seem that you want this is as one of the 99 (putting it into a Muldrotha, the Gravetide deck, for example) so that you can take advantage of it as a graveyard piece, you can still do that if its your commander
After all, you had once played this card when you went to the Unhinged prerelease Wait a minute
The latter is the type of proxy I wanna talk about today
Wasitora, Nekoru Queen Nekoru is an anglicization of the Japanese for cat dragon, so the name certainly fits