No one wants to attack down
Your next Magic card is going to drop
You have loads of ways to trigger this in the Necrons deck itself, particularly all of the cards that have unearth, but youll find even more ways to do this in a dedicated deck
Now, with all those boring ol rules out of the way, lets get into the most expensive cards in March of the Machine
For example, my opponent attacks me with [c]Fierce Witchstalker[/c], a 4/4 trample creature
Sephiroth, Planet's Heir Rarity: Mythic Rare TYPE: Legendary Creature SUBTYPE: Human Avatar Soldier CMC: 6 Mana cost: USD: $0.61 EUR: 1.23 TIX: 1.98 EDHREC RANK: 11171 (4/4) Vigilance (Attacking doesn't cause this creature to tap.) When Sephiroth enters, creatures your opponents control get -2/-2 until end of turn