Davan, Orzhov Collector

Exalted, Unblockable
When Davan, Orzhov Collector deals combat damage to a player, put a mark counter on target creature. Creatures with mark counters on them Must attack if Davan is able to block it. Davan, Orzhov Collector can only block creatures with mark counters on them. When Davan destroys a creature with a mark counter on it, put a +1/+1 counter on Davan or another black or white creature you control.