Honorable Mention I'm not ready to rank a card that doesn't even include Leyline in its name, but Quicksilver, Brash Blur is a potential permanent you can open the game with before any other cards are played
[spoiler=Spell/Trap]Fairy Tale Wonderland Type: Field Spell Effect: When this card is activated: You can add 1 Fairy Tale card from your Deck to your hand, except Fairy Tale Wonderland. You can only activate this effect of "Fairy Tale - Wonderland" once per turn
These are your filler cards
If you pull this from one of your prize packs, slap that puppy in a protective sleeve and top loader
Red Elemental Blast + Pyroblast Red Elemental Blast and Pyroblast are basically the same card in todays Magic landscape
Zndrsplt, Eye of Wisdom & Okaun, Eye of Chaos Zndrsplt and Okaun are officially my favourite partner commanders with the most underwhelming deck around them