Traveler Tales: Virtual Booster

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This booster was generated with modern collation since the cardset contains mythics: 1 rare / mythic, 3 uncommons, 10 commons, 1 basic land.
You could alternatively have 15 random cards regardless of rarity.
 R 
Land
As Nonred Pain Land enters the battlefield, you may reveal a four color card from your hand. If you don't, Nonred Pain Land enters the battlefield tapped.
{t}: Add {c}.
{t}, Pay 1 life: Add {g}, {w}, {u}, or {b}.
 U 
Land
{t}: Add {c}
{4}. {t}: Add {b}{r}{g}{w}.
 U 
Land
{t}: Add {c}.
{4}, {t}: Add {r}{g}{w}{u}.
 U 
Land
{t}: Add {c}.
{4}, {t}: Add {u}{b}{r}{g}.
 C 
Creature – Nephilim
8/4
 C 
Creature
When 'Gold Attack Trigger' attacks, create a colorless artifact token named Gold. It has "Sacrifice this artifact: Add one mana of any color to your mana pool."
3/2
 C 
Land
Blue-Black Gold Land enters the battlefield tapped.
(gold generation ability?)
{t}: Add {u} or {b} to your mana pool.
Another idea for the cycle.
 C 
Creature – Nephilim
(high toughness, lowish power. In progress.)
 C 
Land
Green White Dual Land (In prog) enters the battlefield tapped.
{t}: Add {g} or {w} to your mana pool.
 C 
Land
{t}: Add {c} to your mana pool.
{2}, {t}: Create a colorless Gold artifact token. (It has "Sacrifice this artifact: Add one mana of any color to your mana pool.")
 C 
Land
Red Green Dual Land (in prog) enters the battlefield tapped.
{t}: Add {r} or {g} to your mana pool.
 C 
Creature – Nephilim
Flying
(other effect??)
4/4
 C 
Instant
Destroy target creature with power four or greater that isn't four or more colours.
[Goldcycling]
 C 
Creature – Griffin
Flying
When 'Gold-Horder Griffin' enters the battlefield, create a colorless Gold artifact token. (It has "Sacrifice this artifact: Add one mana of any colour to your mana pool.").
2/3
Plains
 
 B 
Basic Land – Plains

Nonred Pain Land (rare)
Nonblue Filter Land (uncommon)
Nonblack Filter Land (uncommon)
Nonwhite Filter Land (uncommon)
(Nonblue Gold Common) (common)
'Gold Attack Trigger' (common)
Blue-Black Gold Land (common)
(nonred gold common) (common)
Green White Dual Land (In prog) (common)
Vein of Gold (common)
Red Green Dual Land (in prog) (common)
(nongreen gold common) (common)
'Smite the Monstrous variant" (common)
'Gold-Horder Griffin' (common)
Plains (basic)