Battlefield Thaumaturge interaction with X costs.

Asked by AgileFlame 4 years ago

If i have two Battlefield Thaumaturge's on the battlefield with 2 other creatures and then cast an Open Into Wonder, can i just target the 4 creatures i control or do i need to target more due to the double cost reduction from both Battlefield Thaumaturge's?

Kogarashi says... Accepted answer #1

You do not need to target additional creatures.

The ability of Battlefield Thaumaturge is a cost reducer that affects only the generic portion of the mana cost of a spell.

When casting Open Into Wonder, as part of the order of casting the spell, you will choose your targets (four creatures), and then determine the total cost of the spell. In this case, it starts at for four targets, then gets a discount of due to the two Thaumaturges. Since it only affects the generic portion, and a cost can't be reduced to less than , this leaves you with a spell cost of . The additional discounts are effectively "wasted" (though honestly casting a 6-mana spell for 2 mana is good).

The discounts do not require you to choose additional targets for the spell, any more than a Mana Flare affecting your mana production wouldn't require you to choose more just to spend the mana.

March 21, 2020 11:10 a.m.

AgileFlame says... #2

Thanks for the clarification!

March 21, 2020 10:19 p.m.

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