$25 Upgrade +1/+1 Counters is a very deep archetype so there's more sweet upgrade options that I could ever hope to cover, but I selected some of my favorites: for protection I've added Bulwark Ox and Mutational Advantage, a bunch of proliferates with Metastatic Evangel and Dreamtide Whale being the two best, ramp got a massive upgrade with Astral Cornucopia / Kami of Whispered Hopes / Purestrain Genestealer / Summon: Fenrir, and so on
Destroy all planeswalkers spent to cast this spell
Planechase 2012, the first and only real expansion to the format, added phenomenon cards that issued a table-wide effect when drawn
Both Midrange and Control decks use this Merfolk to deny opponents access to their artifacts, planeswalkers, and enter the battlefield triggers from creatures
Once you have access to twelve mana (one of which is blue), an Academy Ruins, and a Mindslaver, you have an infinite combo that will let you play your opponents turns for the rest of the game
Kirol hated being a pawn in Morcants game