Celestial discontinued ability (dark pact) would have been a good choice to replace Life Drain.

Hi everyone, today I started thinking back on the changes that were made to celestial and was wondering why did a good ability like dark pact get removed? I also remembered how neo-venom boost was once just like dark pact and was a ability with a cooldown but later became a supercharge so why did dark pact not get the same treatment even though life drain as a supercharge isn’t useful in most cases and celestial already has 2 abilities to account for battle healing. Dark Pact was a very beneficial ability to celestial’s kit. But somehow got discontinued and life drain is still in the game but holds almost no benefit to the power and encourages a long lost mechanic that everyone usually doesn’t use anymore (battle-healing) unless they’re running clarion and demon fang. Not to mention the supercharge isn’t range it’s melee range which doesn’t make it appealing to use at all.