Find out how many untapped sources to you need to play your spells. is an easy to use, flexible tool to help you determine how many lands you need for your Magic the Gathering decks. Denote alternate costs for cards that have alternate casting costs to get an accurate representation of how your deck plays and how many lands you should be playing.


4 Counterspell
2 Fire // Ice
4 Brightclimb Pathway
4 Force of Will {0}
3 Tasigur, the Golden Fang {B}


  • Use alternate costs to factor in things like activated abilities, kicker, delve, entwine, etc...
  • Phyrexian mana is always considered 0
  • Hybrid mana is calculated as the all of the same type. Use alt cmc's to calculate how you'd like to cast it.
  • Quickly import your deck from popular Magic the Gathering deck builders

Deck Stats


Total Cards:

Average CMC:

Total lands:

Recommended Amount of Lands:

Spell Mana Symbols [?]
Spell Colours [?]
Land Mana Symbols [?]

Recommended Untapped Sources

Unknown Cards [?]

No data for [?]