Untap target creature. After this main phase, there is an additional combat phase followed by an additional main phase.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
: Add , , or .

: Add .
Channel — , Discard this card: It deals 4 damage to target attacking or blocking creature. This ability costs less to activate for each legendary creature you control.

At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Flash (You may cast this spell any time you could cast an instant.)
Flying
Whenever this creature attacks, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to that card's mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)

Creatures can't attack you unless their controller pays for each creature they control that's attacking you.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
: Add .

Blue spells and red spells you cast cost less to cast.
: Regenerate this creature.

When this creature enters, create X 1/1 white Halfling creature tokens and X Food tokens. (They're artifacts with ", , Sacrifice this token: You gain 3 life.")

Enchant creature
Enchanted creature gets +2/+2 and has "Whenever this creature attacks, untap all lands you control."
Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Vivid — : For each color among permanents you control, add one mana of that color.

Squall Line deals X damage to each creature with flying and each player.

Flying
: Add one mana of any color.

Vivid — : For each color among permanents you control, add one mana of that color.

(: Add .)

(: Add or .)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Flying
At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

At the beginning of your upkeep, if you control no permanents other than this enchantment and have no cards in hand, you win the game.

( can be paid with any two mana or with . This card's mana value is 6.)
Search your library for a card with mana value less than or equal to the number of lands you control, reveal it, put it into your hand, then shuffle.