Particle Accelerator

{t}: Add 1 mana of any color to your mana pool,
and add {e}
{e}{p/b}: Summon a 1/1 black rat creature token.
{e}{p/g}: Give target creature a +1/+1 counter.
{e}{p/r}: Deal 3 damage to target creature.
{e}{p/u}: Draw 2 cards.
{e}{p/w}: Exile target creature until end of turn.
As the machine spins up, citizens know it is too late.