{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Dragon creature spell. {2}, {T}, Sacrifice Haven of the Spirit Dragon: Return target Dragon creature card or Ugin planeswalker card from your graveyard to your hand.
{T}: Add {C}. {4}, {T}: Investigate. At the beginning of your end step, if you sacrificed three or more Clues this turn, transform Havengul Laboratory.
When this land transforms into Havengul Mystery, return target creature card from your graveyard to the battlefield. When the creature put onto the battlefield with Havengul Mystery leaves the battlefield, transform Havengul Mystery. {T}, Pay 1 life: Add {B}.
If Heart of Yavimaya would enter, sacrifice a Forest instead. If you do, put Heart of Yavimaya onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add {G}. {T}: Target creature gets +1/+1 until end of turn.
{T}: Add {C}. {1}{R}, {T}: Put a pressure counter on Hellion Crucible. {1}{R}, {T}, Remove two pressure counters from Hellion Crucible and sacrifice it: Create a 4/4 red Hellion creature token with haste.
Hickory Woodlot enters tapped with two depletion counters on it. {T}, Remove a depletion counter from Hickory Woodlot: Add {G}{G}. If there are no depletion counters on Hickory Woodlot, sacrifice it.