Depth Keeper

{u/b}{u}{b}:{t}, Target creature you control gets +5/+5 and has menace until end of turn.
{u/b}{u/b}{u/b}{b}{b}:{t}, Target you control gets +10/+10 or, target creature you don't control gets -10/-10.
{u/b}{u/b}{u/b}{u}{u}:{ut}