mtg modern masters 2013 booster box Magic The Gathering Core Set 36 Packs Wizards of the Coast Modern Masters was designed with a booster draft experience in mind MTG Modern Masters (2013) -

Players can obviously try to create some Ruby-Steel or even Amber-Ruby Song decks but considering Emerald today has a number of very good Control songs, an Emerald-Ruby deck feels a but more interesting

Orbs that have been earned but not redeemed in the Mastery Emporium can still be redeemed and the appropriate rewards received

Providing early-game value through a specific copy, and runaway late-game boosts through its blanket ETB doubling, Virtue of Knowledge is as powerful as it is reliable

However, Phyrexian Tower can be useful in just about any black Commander deck, as it always gives you an option to trade in a creature for a quick mana boost

// Lifelink Protect - Whenever Cecil attacks, other attacking creatures gain indestructible until end of turn

A basic example of this would be a card like Relentless Rats, a rat that gets stronger when more copies of the same card are played