Whenever you cast a spell, you gain 1 life for each spell you've cast this turn. Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.

{T}, Tap an untapped artifact or creature you control: Add {C}. Channel — {4}{U}, Discard Moonsnare Prototype: The owner of target nonland permanent puts it on the top or bottom of their library.

{T}: Add one mana of any color among legendary creatures and planeswalkers you control.

When Prophetic Prism enters the battlefield, draw a card. {1}, {T}: Add one mana of any color.

{T}, Tap an untapped creature you control: Add one mana of any color.

This spell costs {1} less to cast for each artifact you control. When Emry, Lurker of the Loch enters the battlefield, mill four cards. {T}: Choose target artifact card in your graveyard. You may cast that card this turn. (You still pay its costs. Timing rules still apply.)

Flying

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Counter target spell unless its controller pays {3}.

Indestructible {T}: Add {C}.