The number of “Malice Ascendants” in your Graveyard is counted at the resolution of its effect. If your opponent chains “Disappear” to remove 1, then it is no longer counted for the effect of your “Malice Ascendant” on the field.
The number of “Malice Ascendants” in your Graveyard is counted at the resolution of its effect. If your opponent chains “Disappear” to remove 1, then it is no longer counted for the effect of your “Malice Ascendant” on the field.