mtg cards like teferi's protection (foil-etched) Exile Teferis Protection Teferi's Protection [Secret Lair Drop

How about meticulously counting different instances of spore counters per turn

You can also attach it to your commander and hit with a 3/2 lifelink, and then you get to draw cards if Alela dies

As a 5/5 with Flying and two Enter the Battlefield (ETB) abilities that are not mutually exclusive, she's an easy inclusion for

What these cards share in common that sets them apart from the rest of the game is the heart of this problem, as the ability to identify this mysterious variable would help players understand why their Bracket 2 deck probably should not run Glacial ChasmGlacial Chasm

If its red, you may cast it this turn, which does not allow you to put lands onto the battlefield, because a) you do not cast lands and b), even if you did, lands do not have colors despite producing colored mana

Imperial Seal is a sorcery version of Vampiric Tutor, allowing players to have additional Vampiric Tutor effects, albeit at sorcery speed