Dragon Tail Scale

Upgrade	Effect	Sell value	Magic Powder
+0	+2% Blast duration · +2% Giant duration	6,930	80
+1	+2.3% Blast duration · +2.3% Giant duration	7,266	82
+2	+2.6% Blast duration · +2.6% Giant duration	7,728	84
+3	+2.9% Blast duration · +2.9% Giant duration	8,316	88
+4	+3.2% Blast duration · +3.2% Giant duration	9,030	93
+5	+3.5% Blast duration · +3.5% Giant duration	9,870	99
+6	+3.8% Blast duration · +3.8% Giant duration	10,836	106
+7	+4.1% Blast duration · +4.1% Giant duration	11,928	117
+8	+4.4% Blast duration · +4.4% Giant duration	13,059	162
+9	+5% Blast duration · +5% Giant duration	14,307	212

Extracting this Treasure returns Magic Powder. The amount is fixed per Treasure and upgrade level — it does not depend on which ingredients were used to evolve it.

Dragon's tails shed scales too. And they hold special powers!