I don’t get why these are listed as “trolls” they shouldn’t be trolls unless the person is intentionally trying to troll you which is really rare.
The first one is just a simple heat counter.
The second one is just a time bomb.
And the third is just a heat counter.
These things aren’t trolls, people use them thinking that they will win and that they are a strategy.
The real trolls are quad heat bomb mechs and claw bullies.