Avrynth Taysva

+2: Add two mana of any combination of colors. Spend this mana only to cast Dragon spells.
-X: Avrynth Taysva deals X damage to any target. Target creature you control gets +X/+0 until end of turn.
-8: Put three +1/+1 counters on each Dragon creature you control, then those creatures gain haste and double strike until end of turn.