1 Mage's Guile
5 Magnetic Flux
2 Makeshift Mauler
1 Mana Breach
4 Mana Chains
1 Mana Leak
1 Manic Scribe
2 Manta Ray
3 Manta Riders
2 Marang River Prowler
3 Marchesa's Emissary
1 Marchesa's Infiltrator
4 Maritime Guard
4 Mass Appeal
1 Master of the Veil
10 Maze Glider
1 Meddle
3 Meletis Astronomer
1 Memory Lapse
4 Memory's Journey
4 Mental Note
3 Merchant of Secrets
7 Merfolk Looter
4 Merfolk Mesmerist
2 Merfolk Observer
4 Merfolk of the Pearl Trident
5 Merfolk Spy
1 Merfolk Thaumaturgist
6 Merfolk Traders
3 Merfolk Wayfinder
3 Merrow Witsniper
4 Merseine
8 Messenger Drake
8 Metropolis Sprite
Sideboard: