Type

Enchantment — Aura

Oracle Text

Enchant creature\nEnchanted creature gets +1/+1 for each +1/+1 counter on other creatures you control.\nEnchanted creature has vigilance and "{W}, {T}: Bolster 1." (To bolster 1, choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)