I was able to tame one using an ascended longneck, shocking tranq darts, and about 50 large bear traps laid out in a cluster in a flat, open place. The giga chased be into one trap, stood still for a couple seconds, broke out, and immediately went into another one over and over again. I resorted to this after learning how cheap large bear traps were and how ineffective using a grappling hook and argie was for me.

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