10th doctor mtg card Serialized Pull!! — Whenever you attack all doctor who cards mtg

Drawing a card upon entry is a great effect, but gaining life, ramping, and dealing 4 damage to each opponent is solid for a creature that only costs four mana

There's almost no downside, and putting a card like Ulamog, the Ceaseless Hunger or Karn Liberated underneath Ugin's Labyrinth via imprint only to pick it back up when casting it is easier adds a layer of versatility to the Tron strategy that will make it even more of a threat than it has been previously

Although it will cause some execs to cringe a bit initially, its better for the long term health of the game if more modes are available on a regular basis

If you can tick both of these boxes, it becomes a truly excellent two-mana draw engine