That does some wild stufffor example, it gets Marsh Flats back twice for actual land ramp in Orzhov, it lets you feed cards like Dusk Legion Zealot into a Warren Soultrader multiple times, or it wrings the most value possible from cards like Boromir, Warden of the Tower and Dauthi Voidwalker
Kefka, Dancing Mad Decks on EDHREC: 273 While a seven-mana commander is a pretty hard sell nowadays, especially in such not-rampy colors, Kefka is still a great commander option if you love stealing cards from other players
If its an Elf, create three 1/1 green Elf Warrior creature tokens
Simply put, madness lets you play a card for an alternate (often cheaper) cost if its being discarded
Dromar's Charm is a big hit of life if needed but does nothing else if used in this capacity