Archaeological Dig

{T}: Add {C}.
{T}, Sacrifice this land: Add one mana of any color.

Ebon Stronghold

This land enters tapped.
{T}: Add {B}.
{T}, Sacrifice this land: Add {B}{B}.

Exile Ill-Gotten Gains. Each player discards their hand, then returns up to three cards from their graveyard to their hand.

This land enters tapped.
{T}: Add {R}.
{T}, Sacrifice this land: Add {R}{R}.

{T}: Add {C}.
{T}, Sacrifice this land: Add {C}{C}.

This land enters tapped.
{T}: Add {R}.
{T}, Sacrifice this land: Add one mana of any color.

Each player discards all the cards in their hand, then draws that many cards minus one.

This land enters tapped.
{T}: Add {B}.
{T}, Sacrifice this land: Add one mana of any color.

Storm's Wrath deals 4 damage to each creature and each planeswalker.

This land enters tapped.
{T}: Add {W}.
{T}, Sacrifice this land: Add one mana of any color.

{1}{B}: Regenerate this creature.
Sacrifice this creature: Target player discards two cards. Activate only during your upkeep.

At the beginning of your upkeep, if you control no permanents other than this enchantment and have no cards in hand, you win the game.