If the player discards a card from their deck they dont have a match for in their hand, then the resources let the player have a redo and draw card
Protection from everything might not mean much on a 10-drop creature like Progenitus, but granting that same level of protection to a player for a full turn cycle is down-right silly, and exactly the reason you see The One Ring in just about any format where it's [questionably] legal
However, the numbers above are hardly dramatic enough to suggest that you should never draft GB or GW
I'll also give some replacement options, and bonus mentions as well
Artifacts And Financial Value Many of the rare and mythic rare artifacts in Double Masters are vital cards for Commander, Legacy and Modern, and that fact reflects in their prices
The Cavalier is legal in lots of formats and should be considered when playing a mono-red midrange deck