Azzet, Rune Crafter

At the beginning of your upkeep create a colourless artifact token named Rune.
{u}{b}, {t}: Target artifact you control gain indestructible and becomes a creature with power and toughness equal its converted mana cost until end of turn.
{t}, Sacrifice four artifacts named Rune: Create a 5/5 legendary artifact token named Uvra, Runed Masterpiece with trample and haste.