You do need to tailor the deck to contain the Necro but once you can support it it gives you immense power
Opee, Sea Killer / Sanda Aqua Monster Opee, Sea Killer is an okay islandwalk card, but its real value is on its flip side
With Mirkwood Bats in play, each time a token is created or sacrificed, each opponent loses 1 life
If you would get a +1/+1 counter and choose to apply Pir first, you'd get two counters, which then gets doubled to 4 by Doubling Season
The original idea for Alara Reborn , besides having all gold cards, is that it would focus on two-color ally pairs
Since the creature has to attack each turn, it isn't a great answer to opposing commanders, like an Imprisoned in the Moon is, but you disrupt decks that rely on a key card or two when you keep a threat out of your enemys hands