Ten Ten's Summoning Scroll

{t}, Put a 1/1 Kunai artifact creature token
onto the battlefield. It has "Whenever this
creature dies, it deals 1 damage to target creature
or player."
{r}, {t}, Sacrifice two Kunai:
Put a 3/1 Kunai bomb artifact creature
token onto the battlefield. It has "Whenever
this creature dies, it deals 2 damage to target
creature or player.". Activate only as a sorcery.