mtg urza's saga card Amazon.com: Magic The Gathering - Energy Field return the first card to the battlefield under its owners control at the beginning of the next end step. Urza's Saga (Secret Lair Countdown)

Wakanda Forever is an artifact deck all about using the technology of Black Panthers home nation

This also has great synergy with the Ossuary Rats that are printed in this set since they are both graveyard-centric

In a similar vein, these creatures will drain your opponents while giving you life: Blood Artist (any creature dies) Creeping Bloodsucker (beginning of your upkeep) Cruel Celebrant (creature you controls dies) Zulaport Cutthroat (creature you controls dies) Vizkopa Guildmage has an ability where you can give a creature lifelink

You don't have to pay any additional costs to do this, but you still have to observe the timing restriction when casting the plotted spell from exile