No, you can't. The converted mana cost is a value derived solely from the mana cost, which is printed in the upper right corner of the card. That's the thing the Scepter looks at. If the card has no mana cost, then its converted mana cost is 0. Any possible alternative costs are irrelevant.
Thunderous Wrath
No, you can't. The converted mana cost is a value derived solely from the mana cost, which is printed in the upper right corner of the card. That's the thing the Scepter looks at. If the card has no mana cost, then its converted mana cost is 0. Any possible alternative costs are irrelevant.
Former Rules Advisor
"Everything's better with pirates." - Lodge
(The Gamers: Dorkness Rising)
"Any sufficiently analyzed magic is indistinguishable from science."
(Girl Genius - Fairy Tale Theater Break - Cinderella, end of volume 8)