They add little bits of advantage that can match your deck's needs
Puresteel Paladin Puresteel Paladin is a tad narrower than the other options on this list since you have to be an equipment deck to use it, but boy does it go off if you are
Cards: 10 cards, Bonus pack: 1 pack (17 types in total), Play sheet: 1
If youre playing mono white that creates lots of tokens with Clarion Spirit, or a Commander like Emmara, Soul of the Accord or Prava, of the Steel Legion, Halo Fountain will fit in nicely as a mid-to-late game changer
There was a lhurgoyf cycle in Odyssey and there have been a few here and there over the years, including one in Dominaria United , and a chunk in Modern Horizons 3
Some people will say that kills the card, but Im not shrugging off a hasty creature that can add an extra 20-40 damage to your swing out of nowhere