Creeping Tar Pit (Extended Art) [Doctor Who] Halfling Knight Set: The List Type: Legendary

Set: The List Type: Legendary Creature — Goblin Advisor Rarity: Rare Cost: {3}{R} Whenever another Goblin you control becomes blocked

or something like that

Set: Commander 2013 Type: Creature — Wall Rarity: Common Cost: {4}{U} Defender

Set: Modern Masters 2015 Type: Creature — Elemental Incarnation Rarity: Rare Cost: {3}{U}{U}{U} Guile can't be blocked except by three or more creatures

Creeping Tar Pit (Extended Art) [Doctor Who] Halfling Knight Set: The List Type: LegendarySet: Doctor Who Type: Land Rarity: Rare Creeping Tar Pit enters the battlefield tapped. {T}: Add {U} or {B}. {1}{U}{B}: Creeping Tar Pit becomes a 3 2 blue and black Elemental creature until end of turn and can't be blocked this turn. It's still a land.