Monster Combination Breeding time Rare Punkleton Plant Island: Bowgart & T-Rox / Seasonal Shanty: Punkleton & Monculus 31 hours and 45 minutes Rare Yool Cold Island: Thumpies & Congle / Seasonal Shanty: Yool & Monculus 45 and a half hours Rare Schmoochle Air Island: Riff & Tweedle...