Grizzly Bears [Limited Edition Beta] Kaladesh Set: Limited Edition Beta Type:

Set: Limited Edition Beta Type: Instant Rarity: Common Cost: {U} Return target creature to its owner's hand

it has hexproof

Set: Magic 2011 Promos Type: Creature — Ooze Rarity: Rare Cost: {4}{G} When Mitotic Slime dies

Set: Limited Edition Alpha Type: Sorcery Rarity: Common Cost: {X}{R} This spell costs {1} more to cast for each target beyond the first

If each of those creatures could block all creatures that the other is blocking

Grizzly Bears [Limited Edition Beta] Kaladesh Set: Limited Edition Beta Type:Set: Limited Edition Beta Type: Creature Bear Rarity: Common Cost: {1}{G} Don't try to outrun one of Dominia's Grizzlies; it'll catch you, knock you down, and eat you. Of course, you could run up a tree. In that case you'll get a nice view before it knocks the tree down and eats you.