If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.
{W}{U}{B}{R}
Breya, Etherium Shaper
Legendary Artifact Creature - Human
When Breya, Etherium Shaper enters the battlefield, create two 1/1 blue Thopter artifact creature tokens with flying.
{2}, Sacrifice two artifacts: Choose one --
• Breya deals 3 damage to target player or planeswalker.
• Target creature gets -4/-4 until end of turn.
• You gain 5 life.
4 /
4
{R}
Curse of Opulence
Enchantment - Aura Curse
Enchant player
Whenever enchanted player is attacked, create a Gold token. Each opponent attacking that player does the same. (A Gold token is an artifact with "Sacrifice this artifact: Add one mana of any color.")
{3}{U}
Efficient Construction
Enchantment
Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.
{2}{U}{U}
Mechanized Production
Enchantment - Aura
Enchant artifact you control
At the beginning of your upkeep, create a token that's a copy of enchanted artifact. Then if you control eight or more artifacts with the same name as one another, you win the game.
{4}{B}
Revel in Riches
Enchantment
Whenever a creature an opponent controls dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")
At the beginning of your upkeep, if you control ten or more Treasures, you win the game.
{2}{U}
Rhystic Study
Enchantment
Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.
{2}{U}{U}
Thopter Spy Network
Enchantment
At the beginning of your upkeep, if you control an artifact, create a 1/1 colorless Thopter artifact creature token with flying.
Whenever one or more artifact creatures you control deal combat damage to a player, draw a card.