Even Act of Treason doesn't work perfectly with Consecrated by Blood since you also have to sacrifice one of your own creatures if you want to sacrifice the one stolen from your opponent
Best Blue Token Commanders (Talrand, Sky Summoner, Deekah, Fractal Theorist, Sai, Master Thopterist, and Orvar, the All-Form) Most blue token commanders follow a very similar formula for deck construction play a certain type of spell, get a creature token
Resplendent Angel Besides being a good beater as a 3/3 flier for 3, Resplendent Angel is a payoff for lifegain strategies, effectively making 4/4 angels if you gain 5+ life
Finally, it's important to regularly check on your stored cards to ensure they are still in good condition
And all for just a single mana
A lot of the other ideas posted above are fire, like you could pre-make a black and gold art UR binder for $100 too and as a collector that is a pretty good way to stretch your budget, but as a casual child collector the best part was opening packs because it feels like you earned your collection