Nahiri's Machinations

A standing enchantment that hands out indestructible at the top of combat, every turn, whether or not there is an attacker on the table for it to protect, and that automatic repetition is what makes it more than a held-up trick. Granting indestructible to one of your creatures at the start of combat means you can attack into open mana without fearing a trade, force unfavorable blocks, or push an attacker through a board where a chump-plus-removal sequence would otherwise kill it. Because it fires unconditionally, it pays a small tax for being free: on empty turns the trigger does nothing. But when it matters, it reshapes how the opponent is willing to block at all, for as long as it stays on the table. The second half asks for a splash of red: pings a blocking creature, which turns a marginal trade into a kill or finishes off something your indestructible attacker just bounced off of. The two abilities point the same direction (your attacker survives, their blocker does not) but they are independent levers, so a grindy white board can lean on the indestructible insurance while a deck with red to spare uses the activation to clear the crease your attacker opened. The real character here is persistence. This is not a combat trick you cast in response; it is a permanent arrangement that quietly bends the math of every attack step it sees, and the pressure it applies is on the opponent's willingness to block rather than on any single moment.