Adaptive Automaton
{3}
Artifact Creature -- Construct
2/2
As ~this~ enters, choose a creature type.
~this~ is the chosen type in addition to its other types.
Other creatures you control of the chosen type get +1/+1.
Metallic Mimic
{2}
Artifact Creature -- Shapeshifter
2/1
As ~this~ enters, choose a creature type.
~this~ is the chosen type in addition to its other types.
Each other creature you control of the chosen type enters with an additional +1/+1 counter on it.