Chronepsis, dragon of time

Flying, trample, hexproof
If this card enters add X +1/+1 counters onto it.
X is the number of mana used to summon.
{u/b}{t}, Target a monster on your field, it is now indestructible.
{b/g}{t}, All monsters under your control now have trample
{g/u}{t}, All monster under your control get +2/+2