While risky in duel formats, Arcane Denial shows how Blue's countermagic contains hidden depths
I much prefer when bonus sheets have a dedicated slot, as then you know they are just in the draft environment
It's easy to identify these doppelgngers, though - just look at the cards in the decklists
The minigame of Contraptions, which had to be drafted in the mode of Conspiracies, and the inevitable but chaotic nature of how they operated, added some needed tension to a lower-stakes format
Prior to Tarkir: Dragonstorm, blb-124-artists-talent was the latest addition, making it even easier to dig for the birds and sometimes beef up late game burn
Ral, Storm Conduit is best friends with this card, and any red or Izzet mage that wants to blow things up will be too