Battle Hardened Sapper

Battle hardened Sapper enters the with {x}{x} counters on it. Remove 1 charger from Battle hardened Sapper and place A Engineered charge on target permanent that has{t} If that permanent would untap destroy that permanent. Remove 1 charger from Battle hardened Sapper and it gains +6/+6 and becomes a wall with reach until the end of turn.