You can't attack into it because you'll probably lose a ton of your board if you do
Sets that primarily take place there : Conspiracy and Conspiracy: Take the Crown Planeswalker natives (with planeswalker cards) : Dack and Daretti Fiora is a plane inspired by Renaissance Italy

Phyresis Outbreak gives poison and might kill opponents creatures Feed the Swarm enchantment removal in black Vat Emergence gets a creature back and proliferates Spread the Sickness destroys a creatures and proliferates Pact of the Serpent strong tribal card draw Living Death swap graveyards with battlefields, great after sacrificing your whole board to draw cards Skullclamp sack small rats for card draw Thrumming Stone if you go the Relentless Rats or Rat Colony route Coat of Arms your rats will be huge Bolas's Citadel this card is dumb lol, lots of casting power and then you hit Gray Merchant of Asphodel and keep going lol Icon of Ancestry kinda draw buffs rats...is ok Contagion Engine proliferate twice each time you activate Eldrazi Monument gives creatures flying indestructible and +1/+1 Grafted Exoskeleton gives a creature infect, great with Crypt Rats Sword of Truth and Justice proliferate sword Bad Moon buff all black creatures, opponents too Phyresis gives infect again good with Crypt Rats Greed card draw Vraska, Betrayal's Sting proliferate planes walker I know that's a lot but hopefully gave you some ideas to work with

From Showcase and Masterpiece frames and beyond, these stylized frames also deepen the connection between the cards and the broader Magic multiverse
Borrow a canon duo: style your cards after day/night, fire/water, or plus/minus pairs to signal 'two halves of one whole.' Turn your story into stats: put 'Years Together,' an anniversary date, or the city you met as the HP and attack numbers
8 loyalty Player 2 - During his or her upkeep, Player 1 uses Teferi, Master of Time to use its first ability to +1 and Loot