[Obituary] Could the Foundation Establishment Demon King be locked inside a phantom coffin?
There was no need for Yan Qing to test this, because the game forums had already done so. The answer was that in most cases, it could not affect a Demon King of the same rank. That was also why [Obituary] was merely one of the Top Ten Profound Arts rather than the foremost among them: it was flawless in PVP, but lacking in PVE, unable to serve as a universal solution for clearing secret realms.
Yan Qing had just tried it as well. He had consumed roughly 100 spirit essence, but the marvel of [Obituary] had not even covered one of Yan Fei Li's feet, so he tactfully interrupted the spell. Even if he exhausted all his spirit essence to activate [Obituary], the result would probably be as feeble as trying to trap an elephant with a refrigerator.
If Yan Fei Li was a Fourth Rank Demon King, he would probably need to reach the fifth rank to have enough spirit essence. If Yan Fei Li was a Fourth Rank Demon King on difficult mode, he might even need spirit essence on the level of the sixth rank.
Aside from a few Demon Kings that could be easily locked inside by [Obituary], those with enormous bodies were basically impossible. If one had to explain it, one could say that body size affected the cost of [Obituary], which sounded perfectly reasonable. But Yan Qing believed this was actually a balancing adjustment. If large Demon Kings could also be locked away by [Obituary], then [Obituary] would be far too invincible. Players would not need to pay attention to any mechanics at all. They would only need to unleash one round of damage, lock the Demon King away, unleash