Executioner's Mark

[cobalt oriole]

tl;dr: A Mark that increases in power every usage of the mark itself. It passively makes the player instantly kill enemies below a certain HP threshold, which is more effective against bosses

30 kills to charge, using it will increase the bold number below by 2. The number can be increased indefinitely, as long as the player doesn't get a different mark, in which case the number is set back to 0.

If you get an enemy below or at 2 HP (1 heart) using any of your weapons, or their relic effects, like Forge Embers, the enemy is killed instantly. This is 200% effective on bosses and anything spawned in the boss rooms.

So, for example, if the mark was used 3 times in total, the execution threshold will be 2 + 2*3, which is equal to 8 HP (4 hearts), increased to 16 HP (8 hearts) against bosses and their minions.

The numbers can be changed, as this is only an example. However, it would be good if it was a mark, not a relic, to get that usage upgrade dopamine, and also an opportunity to make some cool particle effects without suddenly jumpscaring the player!

[twilit viper]

That would be cool

What if in like ng+++++++ the threshold passed 100

Instant killing

[cobalt oriole]

That would require the player to use the mark 49 times, which is equal to 1470 enemies killed at the absolute minimum, which might not be an impossible number of enemies, but then again, you would probably have some crazy stats from relics anyway at that point of the run, and you would still have to damage the enemies to activate the mark's passive, preventing just marching into a room and seeing everything disappear without moving a finger.

But yeah, execution of enemies would be quite convenient, especially one that scales infinitely.