Toughness Metalsaur

**Abilities:**
- Vigilance
- Whenever Toughness Metalsaur blocks or becomes blocked, put a +1/+1 counter on it.
- Whenever a creature with power 4 or greater enters the battlefield under your control, you gain 4 life.
- WW, Tap an untapped creature you control: Toughness Metalsaur gains indestructible until end of turn.
**Flavor Text:** "Forged from the rarest metals, the Metalsaur stands unyielding, its resilience unmatched by any foe."