[MtG] Considering that Koko now allows other TCG created cards here, I thought that I might do this one

[Lonk]

Spark Transfer
2WU
Instant

As an additional cost to cast Spark Transfer, sacrifice a Planeswalker. Choose 1 - Add Loyalty Counters to a Planeswalker you control equal to the amount of Loyalty Counters of the sacrificed Planeswalker, or increase your life equal to the amount of Loyalty Counters of the sacrificed Planeswalker.

[i]With his life and remaining mana, Venser transferred his Planespark to Karn and restored his heart.[/i]

Not really an expert when it comes to lore or what decks need, but I'm pretty sure it would be good in some Planeswalker-focused decks. Of course, the card's power takes place during New Phyrexia at the end.