fix: Myutant Blast

All equip spell cards except "Premature Burial" related cards needs
EFFECT_FLAG_CONTINUOUS_TARGET.

c79072916.lua

@@ -5,7 +5,7 @@ function c79072916.initial_effect(c)
 	e1:SetCategory(CATEGORY_EQUIP)
 	e1:SetType(EFFECT_TYPE_ACTIVATE)
 	e1:SetCode(EVENT_FREE_CHAIN)
-	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
+	e1:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_CONTINUOUS_TARGET)
 	e1:SetTarget(c79072916.target)
 	e1:SetOperation(c79072916.operation)
 	c:RegisterEffect(e1)