Flood Splicer

Wither
At the beginning of combat on your turn, put a
-1/-1 counter on up to one target creature.
{1}: Until your next turn, Flood Splicer becomes
a copy of target creature with a counter on it,
except it's 7/5 and it has this ability.
If Flood Splicer becomes the target of a spell or ability, amass 5