With the free reset skills coming up later on today, I'm planning to reset mine and will get all three ultimate spells for warlock (Comet/Tetra/Intensification). This would be so lit! and can't wait to test it out later after maintenance. Here's the skill tree that I'm planning to go with.
As you can see I have Intensification and Comet at lvl 5 and Tetra at lvl 4. Only 25k-30k (per hit) difference on damage when Tetra is at lvl5. So, I really think this skill tree would work for you guys and enjoy spamming ultimate spells for sure! I removed Recognized Spell coz it only adds your damage like 1k-3k for a min, and it increased your sp consumption by 25% yikes! Not sooo good brah. Also having Drain life at lvl 4 is good enough to get you full hp, even at level 3 but sometimes it missed.
Like for example, you don't want Tetra on your skill tree, you can put some of the skill points to get max Crimson Rock or whatever skills you like. Anyways, wanna hear your thoughts on this guys! and if you decided to follow this skill tree, then keep me posted and let's see how it goes. Lastly, I may have flaws so feel free to correct me