Fun Effects
Spark Elemental is a 3/1 creature with haste and trample for 1 red mana that gets sacrificed at the end of the turn.
Use Consuming Vortex on your Spark to avoid the sac.
Use Soulless Revival to bring your dead spark back to your hand.
Equip a Grafted Wargear and your Spark becomes a trampling 6/3. Isochron Scepter with a Vortex or Revival lets you repeat this every turn. Make a ball lightning or Nova Chaser for even more damage! Nova Chaser + Grafter Wargear = 13 trample damage!