Skills      Riftwalker has a unique innate ability - Realm Cutter. When you enter a fight you get 25% boost.It decreases by 5%(stacks additive,not multiplicative) every time you attack or use an ability,to a minimum cap of 0%.Realm cutter resets on each fight.    
Power    Mana Cost:
   Mana Cost: 35  
Cooldown: 4 turns  
Effect: 4 hits of 110% damage for a total of 440% damage  
This is the highest damage ability from the Riftwalker arsenal.Use it to 1 shot enemies with low hp.         Aimed    Mana Cost:
   Mana Cost: 15  
Cooldown: 4 turns  
Effect: 4 hits of 30% damage for a total of 120% damage and +30 bonus to hit for 5 turns  
This skill is useless.It does minor damage and you will almost never miss against enemies with 0 defences.        Trip    Mana Cost:
   Mana Cost: 15  
Cooldown: 4 turns  
Effect: 1 hit of 140% damage, -100 Flee to enemy for 20 turns  
Riftwalker is a class that kills enemies with brutal damage,they are either high hp or dead,never low enough to flee.Combined with the fact that this skill does little damage,it becomes useless.        Reality Breaker    Mana Cost:
   Mana Cost: 15  
Cooldown: 2 turns  
Effect: 1 hit of 150% Pierce damage  
If you are using Riftwalker armor your base class is Warrior,so you should have 0 points in DEX,which means that this skill is not gonna do a lot of damage.Don't use it.        Rift Cross    Mana Cost:
   Mana Cost: 27  
Cooldown: 14 turns  
Effect: 2 hits of 65% damage for a total of 130% damage and stuns the enemy for 3 turns if either hit hits  
This is your stun skill.It has a long cooldown so you will be able to use it only once per fight.If you scroll down you can see a table with %chance to stun an enemy with X immobility.Do not use if enemy has 71 or more immobility    Stun Table - Enemy X immobility -% chance to stun (from both hits combined): 
 0 - 100% l 10- 99% l 20 - 96% l 30 - 91% l 40 - 84% l 50 - 75% l 60 - 64% l 70 - 51% l 80 - 36% l 90 - 19% l 100 - 0%    
Realm Change    Mana Cost:
   Mana Cost: 20  
Cooldown: 4 turns  
Effect: You gain +180 Block/Dodge/Parry and +50% boost,both buffs last for 2 turns  
This is one of the two defensive skills that Riftwalker has.It gives ~ 64% chance to Dodge,Block or Parry an attack and also it boosts your damage even more.Use this skill after using Rift Power,it will save some of your HP while also boosting your attacks.        Rift Power    Mana Cost:
   Mana Cost: 17  
Cooldown: 4 turns  
Effect: 1 hit of 150% damage and you gain 20% boost for 5 turns  
As if you didn't have enough boosts yet,this skill also gives you a boost.The damage isn't a lot,but for a boosting skill it's good.        Attack    Mana Cost:
   Mana Cost: N/A  
Cooldown: N/A  
Effect: Attacks 4 times for 25% damage each for a total of 100% damage  
The only time when you should use this skill is when you have no mana.        Melee Combo    Mana Cost:
   Mana Cost: 15  
Cooldown: 2 turns  
Effect: Requires your last attack to hit; deals 5 hits of 40% damage for a total of 200% damage  
This is one of Riftwalker's main skills.You will be using this a lot.It does a nice amount of damage and unlocks Rift Effect.        Rift Effect    Mana Cost:
   Mana Cost: 20  
Cooldown: N/A  
Effect: Requires the last hit of Melee Combo to hit,only usable after Melee Combo; deals 5 hits of 60% damage for a total of 300% damage  
This skill is awesome! It does a lot of damage while also being able to be used after Melee Combo,which has only a 2 turns cooldown.        Mana Strike    Mana Cost:
   Mana Cost: 10  
Cooldown: N/A  
Effect: 1 hit of 135% damage to the opponent's mana  
This is Riftwalker's most useless skill.There is no point in attacking the enemy's mana,unless that enemy is Minx Fairy        Multi Strike    Mana Cost:
   Mana Cost: 25  
Cooldown: 2 turns  
Effect: Hits all enemies for 130% damage  
This is Riftwalker's multi skill.If fighting 2 or 3 enemies and one of them is low enough to be killed by this ability,use it.        Strength Strike    Mana Cost:
   Mana Cost: 25  
Cooldown: 10 turns  
Effect: Deals 4 hits of 25% damage for a total of 100% damage; enemy's damage is halved for 5 turns  
This is Riftwalker's 2nd and last defensive skill.Good against hard-hitting enemies,otherwise not.      Wound    Mana Cost:
   Mana Cost: 15  
Cooldown: 5 turns  
Effect: Deals 110% damage to the enemy and applies a DoT,which deals 30% damage each turn for a total of 150% damage over 5 turns  
This ability is not good at all.Its base damage is low and enemies never last enough turns for the DoT to do serious damage.        Final Blow    Mana Cost:
   Mana Cost: 20  
Cooldown: 14 turns  
Effect: Deals 8 hits of 20% damage; your critical chance is increased to 100% for those hits; Realm Cutter passive resets to 25%,but it still decreases by 5% for each attack or ability used  
This ability is best at lower levels due to the critical chance buff.Only use this skill when your Realm Cutter boost is 0% so you can make the most out of it.