ryker card sleeves review Games Standard size card sleeves for magic the gathering (mtg) Ryker Sleeves: Board Game Kits

If a permanent with an ability that triggers "at the beginning of the end step" enters during your first end step, that ability won't trigger during that end step, but it will trigger during your second end step

Considering Steel Leaf Champion is legal in all the same formats, it's hard not to argue you should be playing it instead, considering you don't have to jump through any hoops, and it can't simply be chump-blocked by small creatures

However, I think Lurrus is a really good maindeck card for Cat tribal decks (which aren't really going to be a Standard thing but is going to be a VERY decent Pioneer deck)

One such deck that has gained popularity in recent years is the Photon deck