Tangleclaw Werewolf // Fibrous Entangler

Only one creature is required to block Fibrous Entangler. Other creatures may also block it, and are free to block other creatures or not block at all.

Wotc — July 13, 2016

The defending player, not you, chooses which creature blocks Fibrous Entangler.

Wotc — July 13, 2016

If each creature that could block Fibrous Entangler is tapped or is affected by a spell or ability that says it can't block, then none of them block. If there's a cost associated with having each of those creatures block, its controller isn't forced to pay the cost, so they don't have to block in that case either.

Wotc — July 13, 2016

If Tangleclaw Werewolf transforms into Fibrous Entangler while it's attacking, having vigilance won't cause it to become untapped.

Wotc — July 13, 2016