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 {E}{E}{E}. 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.

Double strike, vigilance, haste Exhaust — {G}, {T}: Add three mana of any one color. (Activate each exhaust ability only once.) Exhaust — {U}, {T}: Draw three cards. Exhaust — {R}, {T}: Loot deals 3 damage to any target.

Whenever one or more artifact creatures you control deal combat damage to a player, you get {E}{E} (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} spent this way.