Electro, Assaulting Battery isnt quite as strong as Birgi but lets be real, most decks that want one will happily run both
WotC was very concerned that pushing this mechanic too hard could lead to repetitive and unfun play patterns, so the majority of venture cards were scaled back in power pretty hard
9 Azusa, Lost but Seeking Azusa, Lost but Seeking is a three-mana 1/2 that lets you play two additional lands each turn
Besides spells with flashback, youll also find spells with the retrace, aftermath, and jumpstart mechanics, so you can get maximum value out of your graveyard
5 - Wan Shi Tong, Librarian - $54 Wan Shi Tong, Librarian can rack up counters, has Flash, Flying, and Vigilance, and gives you card draw, too
Functionally, Yuna's Whistle is a pseudo-cantrip that always replaces itself with a creature, and finding the creature gives you some +1/+1 counters too, so there's combat trick potential as well