Harmonium, Quint Haven

Harmonium enters tapped unless you control two or more Quintessent creatures.

{t}: Add {c}{c}.

{t}: Add two mana of any two colors. Use this mana only
to cast Quintessent spells.

{5}, {t}: Place X +1/+1 counters on each Quintessent creature you control, where X is the number of Quintessent creatures you control.