Miirym, Sentinel Wyrm [Commander Legends: Battle for Baldur's Gate] Champs and States it enters with three additional

it enters with three additional +1/+1 counters on it

Add four mana of any one color

Set: Modern Masters 2017 Type: Artifact Rarity: Rare Cost: {3} Activated abilities of artifacts and creatures can't be activated unless they're mana abilities

there's only one individual you'll ever need to fear

Miirym, Sentinel Wyrm [Commander Legends: Battle for Baldur's Gate] Champs and States it enters with three additionalSet: Commander Legends: Battle for Baldur's Gate Type: Legendary Creature Dragon Spirit Rarity: Rare Cost: {3}{G}{U}{R} Flying, ward {2} Whenever another nontoken Dragon enters the battlefield under your control, create a token that's a copy of it, except the token isn't legendary if that Dragon is legendary.