Partner with Pako, Arcane Retriever (When this creature enters, target player may put Pako into their hand from their library, then shuffle.) You may play lands and cast noncreature spells from among cards you exiled that have fetch counters on them, and you may spend mana as though it were mana of any color to cast those spells.

({T}: Add {G}.)

({T}: Add {U}.)

Target creature can't be blocked this turn. Flashback {U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.

Each player chooses a nonland permanent they control. Return all nonland permanents not chosen this way to their owners' hands. Then you draw a card for each opponent who has more cards in their hand than you.

You may play an additional land this turn. Draw a card.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Search your library for a basic land card, put it onto the battlefield, then shuffle. Suspend 2—{G} (Rather than cast this card from your hand, you may pay {G} and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Spells you cast from your graveyard or from exile cost {2} less to cast. Plotting cards from your hand costs {2} less.

Negative — As long as K-9 is untapped, other legendary creatures you control have ward {1}. Affirmative — {1}{U}, {T}: Target legendary creature can't be blocked this turn. Doctor's companion (You can have two commanders if the other is the Doctor.)

Flash Enchant creature When this Aura enters, enchanted creature gains hexproof until end of turn. Enchanted creature gets +1/+0 and has flying.

{1}{G}, Sacrifice this enchantment: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Flash When this enchantment enters, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle. {2}{G}, Sacrifice this enchantment: Scry 2.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, this creature can't be blocked this turn."

Enchant Forest As this Aura enters, choose a color. Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.

Target creature gains trample until end of turn. Draw a card.

Choose one — • Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.) • Counter target noncreature spell unless its controller pays {3}.

Put a +1/+1 counter on target creature you control. It gains reach, trample, hexproof, and indestructible until end of turn. (It can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

As an additional cost to cast this spell, sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Choose target creature you control. Whenever that creature deals combat damage to a player or planeswalker this turn, draw that many cards.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Counter target noncreature spell.

Put X +1/+1 counters on target creature you control. Then counter up to one target spell unless its controller pays mana equal to the greatest power among creatures you control.

Exile target artifact or creature. Its controller creates a 4/4 blue and red Elemental creature token.

Choose one — • Destroy target artifact. • Destroy target enchantment. • Exile target card from a graveyard.

Choose two target creatures controlled by different players. Return those creatures to their owners' hands.

Choose one — • Target creature gets +3/+3 until end of turn. • Permanents you control gain hexproof until end of turn. • Return target creature to its owner's hand.

Counter target spell unless its controller pays {X}, where X is the greatest power among creatures you control.

Target creature gains double strike until end of turn. Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

Choose one — • Target creature you control gets +1/+1 until end of turn. It fights target creature you don't control. • Counter target spell unless its controller pays {3}. • Creatures with power 3 or less can't block this turn.

Return target spell or creature to its owner's hand.

Target creature gains shroud until end of turn and can't be blocked this turn. (A creature with shroud can't be the target of spells or abilities.) Splice onto Arcane—Return a blue creature you control to its owner's hand. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)