War of the Spark

Feather, the Redeemed | Legendary Creature | Angel | Flying Whenever you cast an instant or sorcery spell that targets a creature you control, exile that card instead of putting it into your graveyard as it resolves. If you do, return it to your hand at the beginning of the next end step. | Wayne Reynolds

Heartwarming Redemption | Instant | | Discard all the cards in your hand, then draw that many cards plus one. You gain life equal to the number of cards in your hand. | Howard Lyon

Solar Blaze | Sorcery | | Each creature deals damage to itself equal to its power. | Adam Paquette

Tenth District Legionnaire | Creature | Human Soldier | Haste Whenever you cast a spell that targets Tenth District Legionnaire, put a +1/+1 counter on Tenth District Legionnaire, then scry 1. | Victor Adame Minguez

Nahiri, Storm of Stone | Legendary Planeswalker | Nahiri | As long as it's your turn, creatures you control have first strike and equip abilities you activate cost {1} less to activate. −X: Nahiri, Storm of Stone deals X damage to target tapped creature. | Aleksi Briclot

Niv-Mizzet Reborn | Legendary Creature | Dragon Avatar | Flying When Niv-Mizzet Reborn enters the battlefield, reveal the top ten cards of your library. For each color pair, choose a card that's exactly those colors from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order. | Raymond Swanland