Benalish Hero Mercadian Masques Flash Vigilance Aegis of the

Flash Vigilance Aegis of the Emperor — Commanders you control have protection from everything

All permanents are artifacts in addition to their other types

if the amount of mana spent to cast it was less than its mana value

then meld them into Mishra

Artifact and enchantment spells your opponents cast cost {2} more to cast

Benalish Hero Mercadian Masques Flash Vigilance Aegis of theBanding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)