Whether you are utilizing the additional combat step to your advantage, activating Planeswalkers again, or simply utilizing the big mana advantage you get by untapping your lands, Time Walk does everything you could want
Alternatively, you can also use card punishers like Sheoldred, the Apocalypse or Nekusar, the Mindrazer to make Horn of Plenty a more painful exchange
For extra credit, Im going to make an even more specific guess about a potential future sets theme: since 2007 there have been celebrations in the Disney parks under the banner of Pirates and Princesses, with shows and events encouraging kids to dress as their favourite swashbuckling heroes and magical heroines
7 Illithid Harvester / Plant Tadpoles Highly Specialized For Messing With Your Opponents Much like Reflector Mage, Illithid Harvester is a great enter the battlefield ability that wont win you the game, but can throw some massive wrenches in your opponents plans
The main combo revolves around a Pod effect, like on Vivien on the Hunt and Birthing Pod, and making infinite combos with Kiki-Jiki, Mirror Breaker