Galio, the Colossus

Health: 20, Level: 6
Levels 6-8: Whenever a source deals damage to you
or a champion you control, you may have Galio
take that damage instead.
Level 9: {1}{w}{u}{u}: Counter target spell that targets
a minion you control. You may activate this ability
on an opponent's turn.
Level 10: {7}: Galio deals damage equal to his health
to all creatures your opponents control.
Whenever an opponent casts four or more spells
in a single turn, level up.