Elsie, Twister of the Mundane

{u/r}{u/r}, {t}: For each numeric value in each spell, roll a six-sided die, then flip a coin. If
the coin comes up heads, add the value of
the die. If the coin comes up tails, subtract
the value of the die instead. This effect
can't lower a numerical value below zero.
"What do you mean 'why'? Because I felt like it, that's why!"