Polychromos Nymphs

Constellation - Whenever Polychromos Nymphs or another enchantment enters the battlefield under your control, prevent all damage that would be dealt to target creature this turn if the enchantment was white, target creature can't
be blocked this turn if the enchantment was blue, put a -1/-1 counter on target creature if the enchantment was black, deal 1 damage to target creature or player if the enchantment was red, or put a +1/+1 counter on target creature if the enchantment was green.