Dark Ivysaur (6) [Best of Promos]Set: Best of Promos Type: Grass Rarity: Promo Retreat cost: Colorless,Colorless

{1}: Regenerate Living Wall

Set: Invasion Type: Enchantment Rarity: Uncommon Cost: {1}{G}{W} Whenever a creature enters the battlefield under your control

any time you could activate a mana ability

Counters can't be put on artifacts

Set: Vanguard Series Type: Vanguard Rarity: Rare At the beginning of your draw step

Set: Guilds of Ravnica Promos Type: Land — Swamp Forest Rarity: Rare ({T}: Add {B} or {G}

the crime is solved and the Forensic Scientist and the Investigators win the game

" —Gamelon

For example

There are also Rookie Ticket variation cards

Set: Sun & Moon: Lost Thunder Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {1} As Pithing Needle enters the battlefield