User blog comment:Edward130603/Lagiacrus and Rathian/@comment-2036320-20100523022809

Gigginox is much easier if you have poison immunity. Rathian armor + any talisman with 1 slot + any weapon with 2 slots (e.g. the crystal ones) will give you enough slots to get that. Alternatively if you hold off on the Gigginox until after killing the Lagiacrus you can get any blue path crystal weapon for 3 slots. If you have a 2 slot talisman you can use any 5 slot armor, or you can stick with Rathian armor and not need a slotted talisman.

Also, shock traps are your friend. Use them when the Gigginox is enraged. This works particularly well with weapons that can do charged attacks like the GS, SA, and Hammer.