they might reduce casting costs, draw cards when artifacts enter the battlefield, or recur artifacts from the graveyard
Getting +1/+1 for every other cat you control, a typal deck all about cats is sure to turn Pride Sovereign into a serious threat and, admittedly, a significant target for removal
There were many decks from the earliest days that did precisely that
The difference with silver-bordered cards is that gold-bordered cards are reprints of cards that are, or were at the time, legal for Constructed play
Discard Another option with this deck is adding more cards that force opponents to discard cards
Since some sacrifice outlets sacrifice artifacts in addition to or instead of creatures, you can use cards like Experimental Synthesizer and Treasure tokens for a similar effect