Mayahn, Voice of Nature

When Mayahn, Voice of Nature enters the battlefield, search your library for an aura with converted mana cost 5 or less and attach it to Mayahn, Voice of Nature.
When Mayahn, Voice of Nature attacks, during your next pre-combat main phase add X mana to your mana pool in any combination of colors, where X is the amount of auras attached to Mayahn, Voice of Nature.
"Go away puny humans, you're lucky my enchantment isn't up"