Heartless Summoning and creature with casting cost X
Asked by Antoniobizarro 9 years ago
How does it work? For example, if i cast Endless One paying 3 mana, do i get a 3/3 creature or a 5/5 (2/2 or 4/4 after Heartless summoning gives -1/-1)
Raging_Squiggle says... #2
You pay mana for the amount you declared for 
. This equation below will help you understand:
Mana Cost + Additional Costs - Cost Reductions = Mana to Pay
So, using this, we can say that, in your example, you declare =
.
+ No Addition Costs - 
(From Heartless Summoning = 
mana to pay.
You will be having a 3/3 Endless One entering the battlefied as a 2/2. (-1/-1 from Heartless Summoning).
January 13, 2016 5:34 p.m.
Antoniobizarro says... #3
Cool. So it's the same thing with Eye of Ugin in the battlefield?
January 13, 2016 5:43 p.m.
Raging_Squiggle says... #4
Correct, Eye of Ugin also has a cost reduction effect.
January 13, 2016 5:48 p.m.
Raging_Squiggle says... #5
Note that cost reductions stack, so having both Eye of Ugin and Heartless Summoning in okay will make the Endless One cost 
less to cast.
merrowMania says... Accepted answer #1
You declare a value for X. Then the amount you pay is reduced by
.
For your example:
If you declare X to be 5, you will pay three mana and get a 5/5 that becomes a 4/4 because of Heartless Summoning. If you declare X to be three, you pay one mana and get a 3/3 that becomes a 2/2.
January 13, 2016 5:31 p.m. Edited.