I'm not an expert Commander player, I mostly make gimmicky casual decks, but for your cards you're trying to add, my suggestions are: Counterspell replaces Cancel: same effect, lower cost
Check out our primer on comboing with Koll for more on an exciting Boros Equipment card that can even threaten to perform at higher power tables
One thing Id like to try to do here is not just point out why cards are good, since most of you are already capable of that
Featuring an oversized card of Zapdos ex, this set includes a foil Zapdos card, a foil Electabuzz card, and four booster packs, perfect for collecting and gaming
These sorts of discussions are what really make Commander a social formattest your charisma against your opponents
Maybe they will get a handle on two or three different decks, understanding the nuances of which cards are important for that archetype and which aren't