Design (both visual and game design) should be working together against complexity
Ashiok, Wicked Manipulator According to WotC, well only get one planeswalker per set for the time being, so WOE only has Ashiok, Wicked Manipulator
This means that to include a Dual-Ink card in your deck, your deck must contain both of the Ink types displayed on the card
Velomachus Lorehold Velomachus Lorehold gets a nod for being able to hit an opponent and cast a spell from your deck the turn it's played
Recur him, clone him, bounce him, flicker him Saw him in half if you have to
Card advantage is such an important part of many games of Magic, but cards like this that net you multiple cards typically cost a lot of mana