Chalice of the Void

This artifact enters with X charge counters on it.
Whenever a player casts a spell with mana value equal to the number of charge counters on this artifact, counter that spell.

Lotus Petal

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

Thought-Knot Seer

({C} represents colorless mana.)
When this creature enters, target opponent reveals their hand. You choose a nonland card from it and exile that card.
When this creature leaves the battlefield, target opponent draws a card.

Ancient Tomb

{T}: Add {C}{C}. This land deals 2 damage to you.

Cavern of Souls

As this land enters, choose a creature type.
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Mountain

Wasteland

{T}: Add {C}.
{T}, Sacrifice this land: Destroy target nonbasic land.

Wastes

Thendar, the Overminer

Dismember

({B/P} can be paid with either {B} or 2 life.)
Target creature gets -5/-5 until end of turn.

Null Rod

Activated abilities of artifacts can't be activated.

Manasources	Probability
1	100.00%
2	99.92%
3	98.62%
4	89.94%
5	63.89%
6	27.42%
7	4.84%

Color Pip	Probability
	99.74%
	97.04%
	95.16%
	95.16%
	95.16%
	95.16%

Eldrazi Stompy

Artifacts (8)

Creatures (4)

Lands (14)

Sideboard (7)

Probability of drawing any mana sources in your first 7 cards

Probability of drawing a mana source of a specific color pip in your first 7 cards

Mana Cost Distribution

Mana Density