No - echo costs have to be paid in the upkeep - well before the main phase in which you can cast Horned Kavu. The drake will likely not be on the battlefield by the time you cast the Kavu.
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Boza says... Accepted answer #1
No - echo costs have to be paid in the upkeep - well before the main phase in which you can cast Horned Kavu. The drake will likely not be on the battlefield by the time you cast the Kavu.
February 12, 2020 8:53 a.m.