These include: Fire
Other cards I would consider cutting: Skullbriar, the Walking Grave (too slow imo unless he is your commander), Blisterpod (needs to die to get the token), Pawn of Ulamog, Vorapede, Village Rites, Gray Merchant of Asphodel (starts to shine with lots of reanimator stuff), Woe Strider, Scion Summoner, Brood Monitor, Deathreap Ritual, Commander's Sphere It's tough to suggest cards for a budget deck
The cost you paid and the cards mana value are not the same thing, which is good because otherwise half of Magic would need a spreadsheet and a small claims attorney
$13,000 For A Raised Foil Avatar Aang
The Beta cards are largely without any illustration, while Gamma cards are fully illustrated with clip art (mostly borrowed from Dungeons and Dragons manuals) or hand-drawn illustrations
I havent seen the Hoenn Topps cards before, so that was a treat