doubling season mtg card FRACTURE FOIL (Showcase) from Foundations Magic the Gathering Proxy it puts twice that many of those counters on that permanent instead FOIL Doubling Season from Wilds

1 Karumonix, the Rat King

Metallic Mimic : Artifact Creature (Shapeshifter), casting cost of two generic mana, 2/1

You can still play instants and creature abilities on your opponent's turn

The second benefit does apply more specifically to Planeswalkers, but having loyalty abilities cost +1 loyalty extra is something a lot of unaware players might trip over, thanks to it being framed more like a negative

Tax-like effects that require payments other than mana, like the effect of the first ability of Sivitri, Dragon Master, aren't taxes for the purposes of Tax Taker's ability

Quite literally just Demonic Tutors text, except its uncommon