War (violence)
Famine (hunger/starvation)
Pestilence (disease/infection)
Time (age)
by these four things,
all men shall die.
War attacks directly, kills creatures
Famine reduces attributes or max hp, possibly quanta cap
Pestilence causes actions doe to inflict damage on themselves
Time causes things to become more expensive, causes wasted action
all are Death
creatures of mounted horsemen. When all are on the field at once, a special thing occurs, probably a special spell "Apocalypse" causing all other creatures/opponents non-immaterial creatures to be destroyed.
just a thought, I use these 4 horsemen in many things, I like this spin on it.