Lagdos the elder dragon

indestructible, flying, hast, menace.
all dragons you control have hast and menace.
whenever a dragon you control attacks
it gets +2/+1 until end of turn
whenever a dragon you control blocks it gets
+1/+2 until end of turn
{b/g}{g/u}{r/g}:put a +1/+1 counter on Lagos and Lagos
deals three damage to any target