As far I know, no, <p>No, is not possible trigger charm with dot damage.damage. Even if you use runes like <img src="https://vignette.wikia.nocookie.net/tibia/images/6/65/Soulfire_Rune.gif/revision/latest?cb=20121105212912&path-prefix=en" alt="Soulfire Rune"> <a rel="nofollow" href="https://tibia.fandom.com/wiki/Soulfire_Rune">Soulfire Rune</a>, <img src="https://vignette.wikia.nocookie.net/tibia/images/c/c0/Fire_Bomb_Rune.gif/revision/latest?cb=20121105212620&path-prefix=en" alt="Fire Bomb Rune"> <a rel="nofollow" href="https://tibia.fandom.com/wiki/Fire_Bomb_Rune">Fire Bomb Rune</a> or spell like <img src="https://vignette.wikia.nocookie.net/tibia/images/1/11/Ignite.gif/revision/latest?cb=20101206002741&path-prefix=en" alt="Ignite"> <a rel="nofollow" href="https://tibia.fandom.com/wiki/Ignite" title="Ignite">Ignite</a>, all in this case have the same effect <img alt="" src="https://vignette.wikia.nocookie.net/tibia/images/f/fb/Burning_Icon.gif/revision/latest?cb=20171122233728&path-prefix=en"> burning condition .</p><p>The reason is limit it because you can use if to kill some creatures just using it and run away from monster. By example, can put a lot of bomb in a floor of cave and just wait in the exit and the charms kill the creatures who respaw.</p>