Yeah you're right blink immortal is much safer but has problems against hydra, need to scout very aggressively to see a hydra den and react with collosus.
Even vs hydra ling fighting with cannons helps and blink has such a huge effect. Also sentrys can forcefield those slowdras out for days while you get colossus. I understand some maps are harder to do it on thats just adjusting to it though
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