Here is my armor for the /slayer. I do find it to be really effective against any of the mobs. As mena said, use the enchantments from /ce, and also, if you are on Aztec, please do visit /warp villager. Anyway, here it is:
Helmet: Aqua Infinity, mending, Protection 4, Respiration 3, Unbreaking 3, Flame guard 1, Implants 3. Glowing 1, Overload 2 and it is also protected by a white scroll
Chestplate: Mending, Protection 5, Thorns 3, Unbreaking 5, Flame guard 1, Overload 2, Freeze 4, and also protected by a white scroll
Leggings: Mending, Protection 5, Thorns 3, Unbreaking 5, Flame guard 1, Overload 3, and also protected by a white scroll
Boots: Depth Strider 3, Feather Falling 4, Mending, Protection4, Unbreaking 3, Flame guard 1, Gears 3, Overload 3, Anti Gravity 3, and also protected with a white scroll
For my weapon I use a bone axe normally because I do find it to be very powerful and effective against mobs- you can find in /slayer 1 by killing the direwolves. Here is my sword though, if you wanted it.
Sword: Fire aspect 2, Knockback 2, Mending, Sharpness 5, Unbreaking 3, Ice aspect 2, Inquisitive 2, Reforged 7, Headless 2 (headless is useless because player heads drop at a rate of 100% in /warp pvp but I just wanted it there so I can have every enchantment xD), and finally protected by a white scroll
I really hope this helps you out. Here are the colour codes from /ce if you didn't know them.
Green = uncommon enchantment
Blue= Rare enchantment
Red= Legendary enchantment
Kind regards,
Eureka14, a fellow skyblock player