Is Spike Soldier legal in Standard, Modern, and Commander?

Spike Soldier is legal in: Legacy, Vintage, Commander.

What type of card is Spike Soldier?

Spike Soldier is a Creature — Spike Soldier. Its oracle text reads: "This creature enters with three +1/+1 counters on it. {2}, Remove a +1/+1 counter from this creature: Put a +1/+1 counter on target creature. Remove a +1/+1 counter from this creature: This creature gets +2/+2 until end of turn."