mtg blue black red commander deck Tarkir: Dragonstorm Decklists Commander Blue/Black/Red Artifacts (Mishra) (Commander

Siren's Ruse can double up on a strong enters trigger

It doesn't trigger twice from fetch lands, meaning it only triggers once a turn, making it less useful, but despite that, this is a 3 mana 4 power creature, so offensive decks might like it along with the additional stuff you get from dungeons

If you don't control an Army, create a 0/0 black Orc Army creature token first.) Creature - Rogue Orc Old Man Willow Old Man Willow's power and toughness are each equal to the number of lands you control

The fact that you get to interact at your opponents turn at instant speed without paying its mana cost, makes it already very strong and versatile

The Tabernacle at Pendrell Vale You saw my reasons above