Question about Changelings in FFA/Team Games

[StarCraft Poster]

Are the changelings actually useful in high level 1v1 play? Honest answer.I definitely think you will see them used effectively, even in high level 1v1 play. Who wouldn't want an essentially free scout (only costs energy) to use to gather intel on their opponent? With the potential that you opponent might not kill it immediately, it can..

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