First of all, love the deck concept. I've been brewing a very similar looking
Sidar Kondo of Jamuraa &
Ludevic, Necro-Alchemist deck that use lots of small creatures to draw cards and cause your opponents to kill each other. (
https://deckstats.net/decks/117798/1699574-tiny-leaders-but-edh-and-also-?lng=en - link to my deck if you're at all interested)
Couple of thoughts, cards like
Renegade Map and
Traveler's Amulet tend to ramp up rather slowly so replacing them with cards such as Signets, Talismans or
Fellwar Stone might work a bit better. If you are looking for land ramp in those slots, I find that
Font of Fertility works pretty well, putting the land onto the battlefield rather than into your hand. Realistically however, with the curve on this deck and the massive amount of 1-drops it contains, it is unlikely that you need any permanent based ramp.
Personally, I'd replace
Oblation with either
Aura Mutation or
Artifact Mutation (or both) due to the fact that there is almost always a valid target for them and they add to the decks win condition rather than fueling that of the opponents.
Sidar Kondo of Jamuraa is actually a really strong card for this deck and combined with a few other mass evasion effects might allow you to cut some smaller solely evasive creatures for token producers and/or creatures that provide their own card advantage (e.g.
Mentor of the Meek)
Overall however, this is an awesome deck idea.