Ticking Gnomes

Echo {3} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
Sacrifice this creature: It deals 1 damage to any target.

Eternal Masters

Echo {3} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
Sacrifice Ticking Gnomes: Ticking Gnomes deals 1 damage to target creature or player.

World Championship Decks 1999

Urza's Legacy

Echo (During your next upkeep after this permanent comes under your control, pay its casting cost or sacrifice it.)
Sacrifice Ticking Gnomes: Ticking Gnomes deals 1 damage to target creature or player.