In CHA, many skills can be more useful when combined with the right item or the right skills, In this post i will point out several item/skill combinations examples to help you enhance your knowledge in these fields. This is a post for average players.
Skill combination: A nice skill combination can result in a bonus effect, here's an example: Any healing skill with terraptus, with terraptus, hitpoints will be switched to mana and mana will be switched to hitpoints, when you have a healing skill, this will give you a "heal" in mana too, Imagine you have level 12 Holy light, which heals 2.4k hp(cost about 600 mana), you heal yourself with it and use terraptus, you will have a net gain of 1.8k mana as a result, which will be a huge boost to mana for more holy light and other spell.
Second example: Sleep with any debuff(storm bolt/ befuddle/ hex/ stun field and etc.): Sleep will put your enemy asleep, after using a debuff on your enemy, after the duration of the debuff is gone, use sleep immediately, as a result, there will be enough time for the debuff to cool down and can be casted immediately again once your enemy is awaked.
Third example: Wind walk with any channeling spell: As glorn has mentioned before, if you cast windwalk right after you cast a channeling spell, you will be able to channel with windwalk on! This is a very useful ability because during that time no one can disturb you unless someone has true sight.
Item combinations: Item can also affect the effectiveness of the skill greatly, imagine you have a rock orb and you cast hex on your enemy, the hex is supposed to last for 5 sec but you removed the hex with your rock orb in the first second, this will really screw you up since it technically makes your debuff useless.
Here's a few tips for item combination:
Get shell of the mana goddess/ Immortal shoulder only if: You have picked mana shield/ terraptus as your ulti / You have spells that requires crazy amount of mana (watery defender) Other than that You shouldn't get shell of the mana goddess because it will be a waste of gold and inventory space as extra mana wouldn't do anything good for you in late game.
Never put rock orb as your primary orb if you have the following skills: Hex, befuddle, darkness, fiery fire, soul burn, doom root. However, rock orb will not have effect on stuns, so feel free to use it if you have storm bolt/ stun field/ demon spawn/ dead orb, Also, corrupted flesh will not be affected by rock orb/lightning orb, it is also true for the shadow strike effects and parasite.
Poison strike only stacks with the following orbs: Lightning orb/ Rock Orb
Do not get too much armor if you have mana shield, since mana shield at max level gives about 80% damage reduction, which is equal to 100 armor, getting another immortal shoulder will be a wiser choice unless the other team has mana vortex or light sabre. However, always get immortal shield tho since it gives 200 damage reduction, which stacks with mana shield.