User blog:TheScottBird/I Need Some More Help

Hello again, guys. I am here with another question:

I have upgraded the castle on Air Island for 1m coins, which upped the bed amount from 4 beds to 10 beds. As of now, I have a Mammott, Tweedle, Noggin, Toe Jammer, Cybop, Drumpler, and a Fwog. My goal on this island is to get at least one of every triple- and quad-elemental monster, which are the Riff, Scups, Pompom, T-Rox, and Congle.

So, to do this, the normal route to take would be to upgrade the castle to the next level (1.5m) which would give me 18 beds. But that is the price of the Water Island, which I do not plan on purchasing anytime soon, so I am stumped here.

Any idea on how I can work out my plan without upgrading the castle? BTW, I am racking up around 100,000+ coins a day, thanks to you guys. So I have around 7,000,000 coins as of now.