The various members of the eventual party cross paths here, joining to take down a mighty foe
If X is 10 or more, also create X 4/4 white Angel creature tokens with flying and vigilance
Basic land drops are always a hard sell, and I suspect are usually made for the Arena crowd who can use as many copies of them as you like
Pestilent Cauldron can be fetched out of the sideboard but played as Restorative Burst
The special conditions are Asleep, Burned, Confused, Paralyzed and Poisoned, and are indicated by turning the Pokmon card counterclockwise (Asleep), upside-down (Confused) or clockwise (Paralyzed), or putting a special token on it (Burned or Poisoned)
Remember in triple-Gatecrash how everyone thought [casthaven]Luminate Primordial[/casthaven] looked amazing but was too slow for that format