All Eyes On ME!

Notes:
 * This is how it goes:
 * All characters (excluding self) receive 20% less defence.
 * Aphrodite gains that much defence by the amount she lowers.
 * Therefore, if there are 5 characters (again, excluding her), she lowers 20% * 5, meaning that her defence is increased by 100%.
 * This passive changes each time someone leaves or joins the battlefield, so if someone dies, her defence is lowered, and if someone joins, she gains defence.
 * Any questions?