Not just as a one-off nostalgic treat, but a core element of design in both Standard sets and supplemental products
In the past few years, Ive started gravitating towards combo decks with the mindset that games always need to end
This means c with Undying all combo really well with cards that put -1/-1 counters on them, because (somewhat counterintuitively) +1/+1 counters and -1/-1 counters cancel each other out
P/T Number Language Portugus Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pauper, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Standard Rulings (9/20/2016) In a Two-Headed Giant game, Reckless Fireweaver's ability causes 2 damage total to be dealt to the opposing team.
You don't want to rely on them entirely but they bolster very nicely while adding utility and keeping your list low to the ground
Invasion of Fiora / Marchesa, Resolute Monarch Invasion of Fiora is a potential one-sided board wipe that acts more like destroy one or two creatures or all tokens