Ramp shells, Tron builds, and Commander decks built around big-mana engines all benefit from having a reset button that sticks around afterward
In most cases, you'll have to sell a card and use the money to get two cards, depending on how much money you get for the card
Arixmethes, Slumbering Isle Awoken Horror Biblioplex Kraken Brinelin, the Moon Kraken Deep-Sea Kraken Grappling Kraken Gyruda, Doom of Depths Gyruda, Doom of Depths Hullbreaker Horror Icebreaker Kraken Isleback Spawn Kraken Hatchling Kraken of the Straits Krothuss, Lord of the Deep Monstrosity of the Lake Nadir Kraken Polar Kraken Reservoir Kraken Rot-Tide Gargantua Scourge of Fleets Shipbreaker Kraken Shoal Kraken Spawning Kraken Stormsurge Kraken The Watcher in the Water Tidal Kraken Tolarian Kraken Trench Behemoth Tromokratis Wrexial, the Risen Deep
Personally, I'm looking forward to the sexy lion man, Ketramose