Hamlet Captain’s ability uses the stack and can be responded to.

The ability of that gives other humans +1/+1 is a triggered ability that uses the stack and can be responded to. This ability triggers when the Hamlet Captain attacks or blocks, regardless of whether or not you control other human creatures. When it resolves it will give other humans controlled by the Hamlet Captain’s controller […]

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Once an ability is activated or triggered it is independent of its source.

A common misconception in Magic is that you can prevent an activated or triggered ability from being resolving by destroying the source of the ability. This is not true and has never been the way that Magic works. Once an ability is played or triggered and put on the stack it is independent of its […]

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