It's easy and fun to get cheese if you're in room of 3-6 people. Try rooms like 50 and 30 to get low population if you're room is too crowded. Have Fun!
For the 5th trial I got past it with: UNITS: Fire succubus; Goblin; Zombie; Witch; Mermaid; Phantom armor. SKILLS: Phoenix; Lightning bolt; Ice block; Meteor shower; Comet; Healing vial.
Most people probably know this already but the best hero to use for cave trials is the green orc guy Grullborg Grimtooth because he has alot more mana than the others.
Skyrit321 the easiest way to get a queen\razor queen is to go to small nest and kill all but 5 or 6 glooples then wait for a while (can occasionallz take more than 5 minutes) and eventually a queen or razor queen will come out, or an amalgam.
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 "Epic War 4"){kind=icon}
 "Bloons Tower Defense 4"){kind=icon}
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 "When Penguins Attack -TD"){kind=icon}
 "The Battle"){kind=icon}
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