Spotlight-Stealing Crossover: The 5Ds -based Synchro Dimension arc is longer than the GX -based Fusion Dimension and ZEXAL -based Xyz Dimension arcs put together, despite being considerably less relevant to the overarching plot
He gets to explore a vast world and see sights that we can only dream of
Hijack: A nice Kaladesh reprint with cooler art
Sevinne's Reclamation - Bring it back, and hit them again
The War Doctor tracks each individual card that gets exiled or phased out, so effects like cascade can quickly rack up counters on The War Doctor, potentially even enough to take out an opponent in just one attack
Supertypes like legendary and subtypes like equipment arent included in the number of different card types in your graveyard, so you have nine different card types to build into your deck and get into your graveyard: Artifact Battle Creature Enchantment Instant Kindred (formerly Tribal) Land Planeswalker Sorcery This focus on building the right deck with a variety of card types is why well have commanders with the delirium mechanic, and some that dont that still fit this dedicated strategy
