For three-mana, Rhystic Study either draws you a card off of each spell your opponents cast or it serves as one-sided Sphere of Resistance, both of which are absurdly strong effects
I had a game last week where I cast Mulch on turn two, and I turned over three creatures and a Ghoulcaller's Bell
This does ignore the timing restriction if you wish to copy a sorcery, but it cannot ignore any other restrictions for example, a card that says cast this spell only during combat would still not be able to be cast outside of the combat step
If you line up the ally-defending [BT24-012 Dimetromon] beside it, your field will be even more solid
#14 Everyones Invited (Secret Lair Drop Series) Secret Lair Commander Deck: Everyones Invited
Mega Zygarde ex #117 (Mega Hyper Rare): The rarest card in the set, featuring a textured all-gold finish