how many cards in mtg Warp World - Tenth Edition #248 (English) All About The Dark -

And Duelist of the Mind is a strong blue card overall

That is one of the secrets to Up the Beanstalks strength

They bear weapons ready to sacrifice the creature they deam a weak link, perfectly reflecting the card's name

Its numbered 8 in the D23 set, has the number 8 to show its original set (more below), and has the D23 logo symbol

Goblin Piledriver Rarity: Rare TYPE: Creature SUBTYPE: Goblin Warrior CMC: 2 Mana cost: USD: $31.30 EUR: 26.03 TIX: 1.43 EDHREC RANK: 6433 (1/2) Protection from blue (This creature can't be blocked, targeted, dealt damage, or enchanted by anything blue.) Whenever this creature attacks, it gets +2/+0 until end of turn for each other attacking Goblin

Teferis Moat is one such example where the reference is quite clear, although it puts a different spin on things by caring about the color of creatures that want to attack you