As this land enters, you may reveal a Giant card from your hand. If you don't, this land enters tapped.
: Add or .

Put a +1/+1 counter on target creature you control if it's legendary. Then it fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

Flying
Whenever this creature deals combat damage to a player, roll a d20. When you do, put any number of target creature cards with total mana value X or less from graveyards onto the battlefield under your control, where X is the result.

Gargantuan dragon, Challenge 20
Armor class 20, Hit Points 297
Speed 40 ft., burrow 40 ft., fly 80 ft.
Attacks Bite, Claw, Tail, Frightful Presence, Fire Breath, Sleep Breath, Change Shape
STR 27 (+8) DEX 10 (+0) CON 25 (+7)
INT 16 (+3) WIS 15 (+2) CHA 19 (+4)

Flying
Whenever this creature deals combat damage to a player, roll a d20. When you do, put X +1/+1 counters on each of up to two target creatures, where X is the result.

Gargantuan dragon, Challenge 22
Armor class 22, Hit Points 444
Speed 40 ft., fly 80 ft., swim 40 ft.
Attacks Bite, Claw, Tail, Frightful Presence, Lightning Breath, Repulsion Breath, Change Shape
STR 29 (+9) DEX 10 (+0) CON 27 (+8)
INT 18 (+4) WIS 17 (+3) CHA 21 (+5)

Each spell you cast that's a Demon, Horror, or Nightmare costs less to cast.
Whenever you cast a spell, if the amount of mana spent to cast it was less than its mana value, target opponent loses life equal to the difference.

Flying
Whenever this creature deals combat damage to a player, roll a d20. You create a number of Treasure tokens equal to the result.

Gargantuan dragon, Challenge 21
Armor class 21, Hit Points 350
Speed 40 ft., climb 40 ft., fly 80 ft.
Attacks Bite, Claw, Tail, Frightful Presence, Acid Breath, Slowing Breath, Change Shape
STR 27 (+8) DEX 12 (+1) CON 25 (+7)
INT 20 (+5) WIS 17 (+3) CHA 19 (+4)

Whenever you cast a spell that's one or more colors, you may gain 1 life for each of that spell's colors. Do this only once each turn.
: Add one mana of any color.

You draw three cards and you lose 3 life.

: Add .

Draw cards equal to the number of cards in your hand, then discard a card for each card drawn this way.
Basic landcycling

Flying
Whenever this creature deals combat damage to a player, roll a d20. You create a number of 1/1 blue Faerie Dragon creature tokens with flying equal to the result.

Gargantuan dragon, Challenge 24
Armor class 22, Hit Points 546
Speed 40 ft., fly 80 ft., swim 40 ft.
Attacks Bite, Claw, Tail, Frightful Presence, Fire Breath, Weakening Breath, Change Shape
STR 30 (+10) DEX 14 (+2) CON 29 (+9)
INT 18 (+4) WIS 17 (+3) CHA 28 (+9)

Reach
You may play lands from your graveyard.
If a land entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Destroy target artifact.
Flashback

Flying
: This creature deals 1 damage to target creature defending player controls. Activate only if this creature is attacking.

Fading 5
, Remove a fade counter from this creature: It deals 1 damage to any target.

Convoke
Trample, ward
This creature enters with two +1/+1 counters on it for each creature that convoked it.

: This creature becomes colorless until end of turn.

Each creature you control with toughness greater than its power assigns combat damage equal to its toughness rather than its power.

Trample, hexproof