Mulbo, Bearer of Peace

Whenever you cast an artifact or enchantment
spell, create a colorless treasure artifact token with
"{t}, Sacrifice this artifact: Add one mana of any
color to your mana pool."
{2}{w}{t}: Draw X cards where X is the highest converted mana cost of all artifacts and enchantments you control
The example of calm and centre.
Kereth, God of Fenhae