If the target creature is a legal target but isn't destroyed, most likely because it has indestructible, you'll still draw a card if another creature died this turn
Archaeomancer's Map is Burgeoning-lite that draws two lands on ETB, Its highly effective as a white card, since white doesnt have as many options for ramp effects
As I mentioned above, Treasures are rampant in Commander
Since youre already running a lot of equipment and mana rocks, its easy to meet the artifact count needed for cards like Galvanic Blast
Banishing items can help you deal damage or draw cards, plus it can be used to reduce the cost or increase the challenge strength of your most important cards
I also made a Temur version of this deck, which was able to run Root Snare, Growth Spiral, and other ramp cards to power up to 6+ mana quicker for the combo