Galio, Magic Fueled Mammoth

Flying, Trample, Protection from instants and
sorcery spells
When any player casts an instant or sorcery spell,
put a number of spell counters equal to the
converted mana cost of that instant or sorcery
onto Galio, Magic Fueled Mammoth.
Galio, Magic Fueled Mammoth cannot attack or
block unless it has 40 spell counters on it.