These certainly have their uses, but I found the "overwhelm an opponent with hyena cards" strategy to be pretty useful (and fun)
Put a creature card with an even mana value from among the milled cards onto the battlefield under your control
I could just kill them by turn 5 if they don't have any way to answer an early Cosmic larva
Say hi, chat a bit, good luck before and good game after Shuffle a few times, then offer your deck to your opponent for them to cut or shuffle Announce all your actions, be clear about what you are doing You are always allowed to read cards but Ask before touching other peoples cards, and treat them carefully Have a clear and obvious board Say the full name of the card you ink and show it very clearly Dont stack your ink, lay it out so its easy to count Feel free to ask questions if you dont understand something Mistakes happen If you see or make one, say so You can allow takebacks of mistakes or small misplays but you dont have to If in doubt Ask a judge or another friendly player Try not to distract people Loud shuffling, talking to other players Remember: Its a game, games are meant to be fun
It's currently one of the format's tier 1 decks, with a 6.5% metagame-wide share and numerous high profile finishes at major events