In the early days of Magic there was no limit on the number of copies of the same card you could include in a deck, so you could automatically win with enough Black Lotuses, Timetwisters, and Lightning Bolts
Entropic Uprising has an impressive collection of value cards but Ill round off the list with Vial Smasher the Fierce for the sake of brevity
Whenever a creature attacks one of your opponents, if that player is the monarch, that creature gets +1/+1 and gains trample until end of turn
Whenever you cast a Dragon spell, create a 0/1 red Kobold creature token named Kobolds of Kher Keep. Like Rohgahh, Sphinx Of Clear Skies is a creature with a cost of three mana, and has the following effect: Domain whenever Sphinx of Clear Skies deals combat damage to a player, reveal the top X cards of your library, where X is the number of basic land types among lands you control
At the low cost of one specific colored mana, you can flip this card at the beginning of your first main phase