Buying from a licensed retailer removes the guesswork entirely, which is the honest answer to a problem this widespread
Terra, Magical Adept // Esper Terra Rating: 4/10 Terra, Magical Adept is a weird one to evaluate
Magic rules already handle many strangeand uniquemechanics and interactions, so in a first for Un- sets, cards you'll find in Unfinity boosters all have a black border (aside from a selection of silver-border reprints as part of The List more on that below)
Deep dive: the heritage & reprints page
The Precon List Before we talk upgrades, let's take a look at the stock list to see what we're working with: A lot of folks say Hosts of Mordor is an unfocused pile of cards but this is just a poor shallow analysis of the deck: looking at the numbers indicate that it's pretty well-focused on Graveyard and Spellslinger: I count 27 Graveyard cards, counting any card that mills (Forbidden Alchemy), discards (The Balrog of Moria), reanimates (Extract from Darkness), or can be cast from the graveyard (Wake the Dragon)
Trainer cards and basic Energy from the shadowless run also lack the picture-box shadow and use the thinner type, so your binder can show mixed versions if you built it from random lots