GMT : Plague Boiler is sacrificed automatically when it reaches 3 plague counters ?

Question

I would answer yes cuz we've the option to remove counters from it but why it says "when plague boiler has three OR MORE plague counters on it, sacrifice it. If you do, destroy all nonland permanents" ?

Answer 1

The rule is this:

If the third ability (in Plague Boiler) triggers, removing a counter in response won't stop the effect.

So, as soon as it reaches 3 counters, you should sacrifice it and destroy all nonland permanents.

The answer to the second question is "Yes". It can destroy those creatures because it does not target them.

Answer 2

yes, as soon it gets 3 counters you sacrifice it. the reason it says 3 or more is because it may be possible to place more than 1 counter on it in a turn.

if it just said 3 than a player could potentially place a 4th counter on it and then it would have no effect.

yes it destroys creates immune to spells and abilities because it is not targeting any one creature.

it does not, however, destroy indestructible creatures