Thassa, God of the Sea

The devotion mechanic asked one question of every God in the cycle: can you afford to keep this thing turned off? For Thassa the answer is almost always yes. A 5/5 indestructible body that only becomes a creature once you have five blue pips on the battlefield is a wall most decks never need to climb, because the enchantment half does everything you actually want. The upkeep scry smooths draws every turn for as long as it sits there, which is to say forever: indestructible neutralizes the entire class of removal that would otherwise punish a permanent that does nothing the turn it lands. And the unblockable activation turns any creature into a clock, which in practice means the body rarely matters even when devotion finally tips over. That inversion is the heart of the design. Most creatures earn their keep by attacking; Thassa earns hers by refusing to be a creature at all, taxing the opponent's interaction by being immune to most of it while quietly accruing card selection. The devotion clause reads like a downside, but it is really permission to play the card as a resilient enchantment first and a finisher only as a bonus. The Gods built indestructibility into a stat line precisely so they could dangle a creature that opponents could see but not kill, and Thassa is the cleanest case: the one whose static value is so strong that turning the creature on is the least interesting thing she does.