Saianos, the Dragonlord

: As long as Saianos, the Dragonlord has seven loyalty counters on him, he's a 7/7 legendary red Dragon creature with flying and indestructible.
+1: Add two mana of any combination of colors. Spend this mana only to cast Dragon spells.
-3: Dragon creatures you control get +2/+2 and haste until end of turn.