On Wings of Gold

Whenever you discard a creature card, you may pay 2U. If you do, create a tapped token that's a copy of that card, except it's a 4/4 black Zombie.

Whenever one or more artifact creatures you control deal combat damage to a player, you get EE (two energy counters). At the beginning of your end step, you may pay one or more E. If you do, create an X/X colorless Vehicle artifact token named Nalaar Aetherjet with flying and crew 2, where X is the amount of E paid this way.

Whenever you cast an Artificer or artifact spell, you get E (an energy counter). At the beginning of combat on your turn, you may pay EEE. When you do, create a token that's a copy of target permanent you control, except it's a 5/5 artifact creature in addition to its other types and has haste. Sacrifice it at the beginning of the next end step.

Vigilance, menace Whenever you attack, draw a card, then discard a card. Whenever you draw a card, Zombies you control get +1/+1 until end of turn.

Flying At the beginning of each end step, put X +1/+1 counters on each creature you control, where X is the number of creatures that died under your control this turn.

As this enchantment enters, choose a creature type. Creatures you control of the chosen type get +1/+0. At the beginning of your end step, for each token you control of the chosen type that entered this turn, create a token that's a copy of it.

Whenever an opponent activates an ability of a permanent that isn't a mana ability, you create a 1/1 white Zombie creature token. This ability triggers only once each turn.

Vigilance When this creature enters, draw cards equal to the number of Zombies you control or the number of Zombie cards in your graveyard, whichever is greater.