mtg poison deck commander Atraxa, Praetor's Voice PROLIFERATE COUNTERS Magic Custom each opponent loses 1 life. Toxic EDH! Vishgraz, the Doomhive

Her other ability returns one enchantment card from your graveyard to the battlefield with a finality counter on it, meaning if it dies again, it gets exiled instead

They are both an interesting gameplay piece and a great way to add flavour to card designs

Not even a Planeswalker card for Gandalf the White when he returns after his triumph over the Balrog at the Endless Stair at the peak of Celebdil

Rather than list every single Vintage deck ever, heres an example of the kind of stuff Demonic Tutor and the rest of the busted tutors do (of which, Demonic is clearly the best)

Wander in Death: Limited

(Check #2 below for an example, and even #6 for another)