Elementalist
Resides: Islands, Mountains
Life: 10
Preferred Magic: Red, Blue
Card Profile: Her deck is loaded down with spells having fairly high casting costs and features Elementals (for all four elements) as well as a number of Walls. You need to get some anti-creature spells and regeneration blockers to keep her from inflicting too much damage. She depends mostly on large creatures, so if you can destroy her land while rushing at her with small creatures, you should fare well.

Elvish Magi
Resides: Forests
Life: 6
Preferred Magic: Green
Card Profile: With Untamed Wilds and Llanowar Elves, the Elvish Magi can build up his mana supply quickly. If he then pulls out a Stream of Life, he may end up with more life than you, and he may well pull a Hurricane to finish you off. Avoid using flying creatures, as they'll meet a quick death when going against Giant Spiders and Winter Blasts. Walls are a good thing to use to protect yourself while you attack with midsized, first strike capable creatures and direct damage.

Enchantress
Resides: Forests
Life: 8
Preferred Magic: Green
Card Profile: Her main goal is to pull out a Thicket Basilisk with Regeneration and Lure enchantments and keep it in play, destroying all of your creatures that don't remain tapped during her turns. Most of her creatures require lots of mana to cast, but she does have Wild Growth and Llanowar Elves to help. You need to stop her quickly before she gathers steam. Also, if you can use Tranquillity against her, you'll put a stop to her enchantments.

Forest Dragon
Resides: Forest
Life: 12
Preferred Magic: Green
Card Profile: Unlike other dragons, this one only uses green magic to summon his big beasties. If you can make a fast deck, you'll finish him off in short order, especially if you have flying creatures.

Fungus Master
Resides: Forests, Islands
Life: 10
Preferred Magic: Green, Blue
Card Profile: The Fungus Master would prefer to sit behind his Walls and whittle away your life with Rods of Ruin and pumped-up Fungusaurs. You'll want to avoid attacking with small creatures. Use flying ones instead; he's defenseless against them.

Guardian of the Tusk
Resides: Forests, Plains
Life: 10
Preferred Magic: Green, White
Card Profile: His fast deck uses lots of small creatures like Birds of Paradise to tear you down quickly while he builds up enough mana to cast the big ones like Colossus of Sardia. You can slow him down with flying creatures early, as well as hit him hard with midsized creatures before he has the time to summon the big ones.

Goblin Warlord
Resides: Mountains
Life: 12
Preferred Magic: Red
Card Profile: Naturally, his deck is full of low cost goblins, but pumping it up makes this deck pretty fast. But like most decks of this type, Pestilence or Earthquake will pretty much ruin him, along with a Conversion to shut him down further.

High Priest
Resides: Plains
Life: 11
Preferred Magic: White
Card Profile: Like most fast decks, the High Priest has lots of weaker creatures to cast quickly, like Savannah Lions. To make things interesting, he has three Dingus Egg cards, Balance, and Armageddon. You'll want to play a fast deck yourself such as a green deck using Elves and Birds of Paradise. Avoid the temptation to use a lot of land, unless you can counter or destroy the Dingus Egg.

Kiska-Ra - White Dragon
Resides: Forests, Islands, Plains
Life: 18
Preferred Magic: White, Blue, Green
Card Profile: Like all dragons, Kiska-Ra uses a tricolored deck loaded with small creatures and effects to pump said creatures up. Since he has almost no high cost spells, land destruction won't be nearly as productive as with other creatures that use three colors. While you overwhelm him with your small to medium creatures, use a Tranquility card as well as mass damage and creature destruction cards to finish him.

Lord of Fate
Resides: Plains, Swamps
Life: 14
Preferred Magic: White, Black
Card Profile: The Lord of Fate can get pretty brutal quickly with Osai Vultures, Serra Angels, and both Holy and Unholy Strength. Your best bet is to use a fast deck with plenty of anti-artifact and anti-enchantment spells.

Mandurang - Black Dragon
Resides: Islands, Mountains, Swamps
Life: 18
Preferred Magic: Red, Black, Blue
Card Profile: His tricolored deck is built around flying creatures with Unholy and Giant Strength to pump them up. He'll also hit you with Carrion Ants and Cursed Land, which will make short order of you unless you too have a fast deck. You'll need to have plenty of anti-flier spells along with a Hurricane or Winter Blast. Also, Tranquility works very well against this deck.

Merfolk Shaman
Resides: Islands
Life: 6
Preferred Magic: Blue
Card Profile: His low life points may make him relatively harmless, but you need to watch out for his fast, cheap creatures that can deal a lot of damage early on. Try using a green deck, as it will help stop the hemorrhaging his Lifetap and Magical Hacking will inflict on your land. You'll want counter his offense with point-a-turn enchantments and direct damage spells.

Mind Stealer
Resides: Islands, Swamps
Life: 10
Preferred Magic: Black, Blue
Card Profile: Your first clue about this adversary's tactics is in the name. He has the special ability to use your own deck against you. But don't relax if he chooses to play mostly from his own deck. He has plenty of spells that will take cards from your hand, take control of your cards, and pull cards from your graveyard. But most of the Mind Stealer's spells require high amounts of mana, so you should work on destroying his land and attacking with small, fast creatures.

Necromancer
Resides: Swamps
Life: 11
Preferred Magic: Black
Card Profile: Naturally, the Necromancer's deck concentrates on dead things, like Zombies, Raise Dead, and other evil things. Do not play a black deck against him because he has a number of Swampwalking creatures. You'll want a supply of enchantments and a Circle of Protection: Black to stop him.

Nether Fiend
Resides: Swamps
Life: 16
Preferred Magic: Black
Card Profile: The Nether Fiend has a solid black deck, which relies heavily on The Hive, Xenic Poltergeist, and Lord of the Pit. But like the Necromancer, he has no protection from enchantments, although the aforementioned cards give him some protection from Circle of Protection: Black. You'll want to use a mass destruction spell once he's laid out most of his cards.