But if you sacrificed to Phyrexian Altar make a mana, then you cannot copy it, since that's a mana ability
The other popular gameplay style is Commander, which comprises a 100-card Deck with no repeated cards, and very similar gameplay
Removing all artifacts or destroying all enchantments is great, and the flexibility of the modes is even better
It's worth noting that cards like Devout Decree are both good against Mono-Red Strategies and Dimir strategies, making it a flexible removal spell
Because this ruined the fun for the rest of the players, the card makers agreed early on to stop printing them, making the likelihood of owning them today extremely rare
My parting advice is to remember that your priorities may vary depending upon the power level of your playgroups decks, your budget, and your personal playstyle, so dont be afraid to adjust as appropriate