**What Else Can I Do?** fits best in **Sapphire midrange or control decks**, especially builds that already leverage **ramp and song synergies** (like Sapphire/Steel or Sapphire/Amethyst) and can reliably sing it with a 5+ cost character
Legendary Creature - Knight Vampire The Ur-Dragon Eminence As long as The Ur-Dragon is in the command zone or on the battlefield, other Dragon spells you cast cost less to cast
Last Gasp is simply cheap, efficient, and highly effective, everything you want in a removal spell
Hail Caesar Indeed Super value here
New D&D Secret Lair Cards To my mind, the coolest flavor from the D&D sets were the module-style lands and the rulebook-style creature cards, so these drops with iconic D&D artwork from the ages just make me so happy
Many mutate creatures take advantage of this, with abilities that trigger "each time this creature mutates", and you can collect a pile of different mutate triggers in one body