Arena weapons are used with no cost on SoFree creatures

[Submachine]

Basically, let's see what is happening here. After my current state that is seen on the first image, I press space for next turn.

Spoiler for Before:

After my turn, the AI targets the same wyrm with infection and lobotomize, both gets avoided by the help of SoFrees.

Spoiler for After:

The AI had 11 and 1 quanta and got only a dimshield and a dark pendulum on his turn. He summoned the dimshield leaving 5 quanta, used infection, that depleted the quantum, but after that the lobotomization didn't consume any quanta.

The reason why I could make this printscreen in time is because I already met this bug a lot and vs every AI, not just Arena (applies for both AI 0-6, arena and AIs that take over PvPs). The bug also applies for any creature targeting weapon: Owl's Eye, Lobotomizer and Eternity too.

Notice how the infection still consumed quanta while it got still avoided, so it IS supposed to drain quanta. It just doesn't. That's a bug definitely.

[TheonlyrealBeef]

PvP gives the same thing, causing an undetected desynch.

Spoiler for screenshots:

Before

After, notice the 2 difference between the 2 screens.

Not as much an issue since the opponent can't play this quanta anyway.

[andretimpa]

Not as much an issue since the opponent can't play this quanta anyway.

But if you cast BH, you could get healed different amounts on both sides, creating a relevant desynch. If this still went undetected you could possibly have a situation were both sides win.

Another possibility, if you are running devourers (SoFre vampires, for example), you could end up draining more than you should and having the quanta to play things you shouldn't, causing a huge desynch.

[CuCN]

This might be related (another bug having to do with quanta not being used): http://elementscommunity.org/forum/confirmed-ai-bugs/unstable-gas-quanta-consumption/