Wizards doesn't like putting tutor effects on permanents apparently
4 Secret Lair Drop Series: Doctor Who: Regeneration Double The Regeneration Rose Noble The Celestial Toymaker The Fourteenth Doctor The Fifteenth Doctor The Meep After the release of the Universes Beyond Doctor Who, fans quickly noticed that a few Doctors were missing
As you can see, this card is perfect in every way
Let's take a look at Warlock Class
Rakdos, Lord of Riots and Ob Nixilis, Captive Kingpin are among the most popular options, but you can also leverage Gev, Scaled Scorch and Abaddon the Despoiler
Still, some are drastically more expensive than others, or hard to get hold of after limited print runs