Obelisk Spider ability triggers when at 0 attack power. [Devs Aware]

Firinmahlazer Posts: 417 Mover and Shaker
Facing Obelisk Spider. I had Ruthless Sniper on the board and cycled 3 cards making Obelisk Spider a 0/8. When my first creature attacked and was blocked by Obelisk Spider the creature received -1/-1, I took 4 damage, and the opponent gained 4 life. Obelisk Spider ability reads "When this creature deals damage to a creature....". Since it was a 0/8 he technically did not deal any damage to my creature but its ability still triggered.