Shapeshifter has total power and toughness of 7, divided any way you choose, though neither can be more than 7.
When you play Shapeshifter, choose its power and toughness.
During your upkeep, choose Shapeshifter's power and toughness.
Born like a Phoenix from the Flame, But neither Bulk nor Shape the same.
?Jonathan Swift, "Vanbrug's House"