The only data-wise unique qualifier is that the collector number contains b , however Gatherer doesn't seem to offer a search query for the collector number
My favourite counterspell in these lists because of that is Spell Pierce (8), it is hitting what you need it to and it has a very high demand on your opponent given its cost meaning it is a surprisingly hard counter in cube
Cards like Man-O'-War, Aether Adept, and Venser, Shaper Savant all do a great job at getting stuff off the board, but only in a temporary capacity
Casting Cost: Card Type: Creature - Ogre Warrior Power / Toughness: 3 / 3 Card Text: Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.) Trample As long as it's your turn, you and Gruul Spellbreaker have hexproof
The planeswalker character Aminatou featured heavily on marketing material for the set, alongside Liliana
The World Tree not only grants all of your lands the ability to give mana of any color, but you can also sacrifice it and pay two of each color to put any number of God cards onto the battlefield from your library