Atrades of the Pure

At the beginning of your upkeep you get an experience counter, then put two 1/1 white Soldier creature tokens onto the battlefield for each experience counter you have.
{r/w}{r/w}{r/w}{r/w}{t}: Creatures you control get +1/+1 for each experience counter you have.
Sacrifice Atrades of the Pure: Creatures you control are indestructible until end of turn