Yule Tide Reckoner

Coming to Town 5 {u}{u}{b}{b}: You may play
Yule tide Reckoner for his Coming to Town
cost as long as you lost 5 life last turn.
When Yule Tide Reckoner Enters the
battlefield, tap up to {x} creatures, where {x}
is the number of creatures in graveyards.

Dream sweetly 'til the waking hour, for he won't
come 'til you're asleep.