Urg Raab, Warhost Raider

Haste
When you attack with one or more saddled creatures, each attacking creature you control gets +X/+0 and trample until the end of turn, where
X is the number of saddled creatures attacking.

Beast, wolf and spider creatures you control have Saddle 1 (Tap any number of other creatures you control with total power 1 or more: this creature becomes saddled until end of turn. Saddle only as
a sorcery.)