If that creature has a +1/+1 counter on it
Whenever one or more other creatures with power 2 or less that enter the battlefield under your control
Their instinctual connection lends itself well to their preferred fighting style
Set: The Lost Caverns of Ixalan Type: Creature — Dinosaur Rarity: Uncommon Cost: {4}{R} Rampaging Ceratops can't be blocked except by three or more creatures
then draw another cards if the sacrificed permanent was a commander
Farseek [Magic 2013] Demon Rogue If that creature has aSet: Magic 2013 Type: Sorcery Rarity: Common Cost: {1}{G} Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle. "How truly vast this city must be, that I have traveled so far and seen so much, yet never once found the place where the buildings fail."