I run 3 Linkslayer because it's very versatile. It can special summon itself to make for Tribute material, you can Tribute summon it for Domain's effect or combo it with Stormforth to get rid of an opponent's card, its discard effect is good backrow removal and a way to get Pantheism or Prime into the GY, and it can act as a serviceable body if you brick and just want to have something on the field.
2 copies of Majesty's Fiend because its 2400/1000 stats allows it to use Tenacity of the Monarchs and Return of the Monarchs, and 3 Vanity's Fiend because its effect is incredibly powerful even though it doesn't have the Monarch stats.
Seleglare can be searched by Ehther, and its effect can be useful for getting a low-atk card away from your opponent for a turn. It can also use Tenacity and Return.
I choose Proof of Pruflas over Squires or Vassals because Ash Blossom can't stop Proof like it can Edea, and I often found myself bricking because I'd draw multiple Squires or cards that search Edea (like RotA or One For One) but no tribute monsters.
Change of Heart was unbanned, and I can see that being great for getting tribute fodder.