Walwing Branson

Walwing enters the battlefield with a shield counter.
Walls you control are Plants in addition to their
other types.
Plants you control assign combat damage equal to
their toughness rather than its power and can attack
as though they didn't have defender.
Whenever a plant you control attacks it gets +0/+X,
where X is its power.
{3}{g}: Gain control of target Plant.
"My roots shall tear their cogs asunder!"