Because collecting (rather than battling) is what initially draws a lot of people to the physical card game, Creatures Inc
The Aetherspark is the prize for winning the set's death race, which runs across three MTG planes
And sometimes, just warping this card in, attacking, and drawing a card is a strong move
Note: This item is NOT compatible with Interlocking Graded Card Frames - Black ,SKU 1-ICF-G-BLK
But Kaervek's Torch was the first spell to pack what would become the formula for the unnamed, lets call it proto-ward mechanic for years to follow: Spells that target it cost more to cast. This effect was introduced on a permanent in Planechase 2012 with Elderwood Scion, and the costing--more-to-cast formula generally appeared on one card per set (with plenty of exceptions) starting with Dragons of Tarkir s Icefall Regent
Those couldn't be combined at the minute with a leader, but it's not creating something that isn't already in those colors