At the beginning of your end step, you may pay . When you do, destroy target creature with toughness X or less, where X is the number of Shrines you control.
You ramp into a critical mass of Shrines, using Go-Shintai of Hidden Cruelty's end-step removal to pick off creatures while your enchantment engine accrues value each upkeep. The deck plays a grindy attrition game, controlling the board with edicts and Shrine triggers until you assemble enough Shrines to drain or beat the table down.
Built-in repeatable removal that scales with your Shrine count and ignores indestructible-style toughness checks
Deathtouch makes Go-Shintai a strong blocker and combat deterrent
Enchantment-based engines are resilient and hard to disrupt with creature removal
Mono-black gives access to tutors, recursion, and powerful card advantage
Slow to come online and reliant on amassing multiple Shrines
Vulnerable to enchantment hate and board wipes that hit your Shrine package
The end-step removal only kills one creature per turn and requires extra mana
Mono-color means no access to counterspells or off-color enchantress effects
Taxes attackers based on your enchantment count, protecting you while you grind.
Add the cycle of Go-Shintai creatures and a Shrine reanimation package for resilience, plus enchantment tutors like Enlightened Tutor (note: white—use black tutors such as Demonic Tutor and Vampiric Tutor instead). Improve mana with fast rocks and rituals to enable multiple end-step activations, and include protection like Sphere of Safety and recursion such as Phyrexian Reclamation to weather board wipes.