commander · Riku of Two Reflections
Mirror Mastery (CMD).
A Temur copy and double deck from the original Commander set, led by Riku of Two Reflections, pay two mana to copy any instant or sorcery, or pay three mana to copy any creature entering the battlefield.
The Commander
Mirror Mastery is one of the original 2011 Commander precons, and Riku has one of the broadest doubling effects in the format. Whenever you cast an instant or sorcery, pay two mana to copy it. Whenever another nontoken creature you control enters, pay three mana to make a token copy of it. Every spell doubles, every creature entry doubles. One Riku activation on a Tooth and Nail resolves two Tooth and Nails at once. Avenger of Zendikar entering makes a token copy of itself, so you get twice the Plants right away.
Riku of Two Reflections wants heavy enter-the-battlefield creatures and big instants and sorceries. The deck also packs Animar as an alternate commander for a +1/+1 counter plan, Edric for card draw off combat damage, and Intet for top-of-library tricks. The main Riku plan is explosive turns where doubling your spells and creatures makes more value than opponents can answer.
Key Cards
Animar, Soul of Elements
Gets a +1/+1 counter whenever you cast a creature spell, has protection from white and black, and makes your creature spells cost one less for each counter on it. As an alternate commander, Animar takes the deck somewhere else entirely: chain creature spells to stack counters, then cast huge creatures for zero mana once Animar has eight or more. And with Riku copying creature entries, each doubled entry adds a counter to Animar on top of the doubled ETB value.
Edric, Spymaster of Trest
Whenever a creature deals combat damage to a player, its controller may draw a card. Every creature that connects draws a card, including opponents' creatures swinging at each other. Copy Edric with Riku and you get two of him, so each creature that deals combat damage draws you two cards. The deck runs enough evasive creatures to connect reliably, which turns combat damage into a flood of cards.
Intet, the Dreamer
Whenever Intet deals combat damage to a player, pay two mana to exile the top card of your library face down, and you may play that card for free until end of turn. Keep connecting and Intet chains free casts. In a Riku deck, if that exiled card is an instant or sorcery, Riku's two-mana copy trigger doubles it for four mana total: a free spell, twice. If it is a creature, Riku's three-mana copy doubles the entry. Intet supplies the free casts and Riku doubles them.
Magmatic Force
At the beginning of each upkeep, Magmatic Force deals three damage to any target. It fires on every upkeep, yours and each opponent's. In a four-player game, that is twelve damage per turn cycle with no other input. Copy it with Riku and two Magmatic Forces deal twenty-four per cycle. Add Edric's card draw off combat damage and the deck is throwing twelve to twenty-four free damage around the table and drawing cards every turn.
Simic Sky Swallower
A 6/6 flying trample shroud creature. Riku copies it on entry, giving you two 6/6 flying tramplers with shroud for seven mana. Neither can be targeted by removal. In practice they hit for twelve in the air at any two players a turn, and shroud means opponents need a board wipe to deal with them. This is the deck's simplest non-combo kill: copy Simic Sky Swallower and swing with two 6/6 flyers nobody can remove.
How to Play
Get Riku down by turn four or five and keep mana open for his copy triggers. Ideally you land Edric alongside him, so your evasive creatures draw two cards a hit with two Edrics out and fuel your bigger spell turns. Mid-game, point Riku's spell copy at your best draw or tutor to double what you dig up. The explosive turn comes when you cast a finisher like Tooth and Nail, pay two mana to copy it with Riku, and resolve both at once. Or drop a creature like Avenger of Zendikar, copy it for three mana, and put twenty-plus Plant tokens on the board on the spot. Riku's Magmatic Force copies chip in twenty-four damage a cycle while you set up the kill.
