The creature touched becomes much, much larger! Their height doubles, and their weight increases by a factor of ten. All of their equipment scales up with them as well. This provides a number of benefits:

• The creature's damage rolls are increased by two points per die of damage rolled.
• The creature gains temporary stamina equal in value to their normal maximum stamina.
• The creature's melee and unarmed attacks gain Reach.
• The creature's Resistance increases by +1 per three full points of Resistance that they have.
• The creature's speed increases by one.

Of course, it's not completely beneficial. Attacks against the foe take a +1 bonus, due to the creature being a larger target.

The spell persists until all of the creature's temporary stamina is depleted.