mtg commander big creature deck Thalia and The Gitrog Monster LANDFALL + SACRIFICE Magic – CommanderComplete The Knowledge Pool — Maelstrom

A blue card is any card with a blue color identity, typically identified by its blue mana cost or a color indicator

7 Mirri, Weatherlight Duelist You Decide How Combat Is Going Mirri, Weatherlight Duelist makes it so that each opponent can only block with one creature when she attacks or only attack you with one creature when she's tapped, making it difficult for your opponent to prevent and deal damage

This is a rather match-up dependent commander

Oh, and Ajani, Mentor of Heroes can give a little push in that department

Either way, it's a surprisingly gripping tale that does a good job of tying into previous sets without being an overwhelming prospect for anyone that's new to all this