Ursarctic Drytron

Special Summon 1 "Ultimate Flagship Ursatron" from your Extra Deck by banishing 1 "Ursarctic Big Dipper" and 1 "Drytron Fafnir" from your hand and/or field, although you can banish 1 of them from your Deck instead if "Ursarctic Polari" or "Drytron Alpha Thuban" is on the field. If you would Tribute a monster(s) to activate an "Ursarctic" or "Drytron" monster's effect, you can banish this card from your GY instead. You can only use this effect of "Ursarctic Drytron" once per turn.

Normal Spell Card spell