Magic the Gathering

Echo

‘Echo’ was intro­duced in the Urza’s Block and it cur­rently appears on a num­ber of cards such as Bone Shred­der, Basalt Gar­goyle

702.27. Echo

• 702.27a. Echo is a trig­gered abil­ity. “Echo [cost]” means “At the begin­ning of your upkeep, if this per­ma­nent came under your con­trol since the begin­ning of your last upkeep, sac­ri­fice it unless you pay [cost].”
• 702.27b. Urza block cards with the echo abil­ity were printed with­out an echo cost. These cards have been given errata in the Ora­cle card ref­er­ence; each one now has an echo cost equal to its mana cost.

Trans­la­tion:

• 702.27a. Trig­gered at the begin­ning of the upkeep, if this per­ma­nent came under your con­trol since the begin­ning of the last upkeep, you’ve got to pay this cost or sac­ri­fice the creature.
• 702.27b. The orig­i­nal echo did not name a cost, it was just always the cast­ing cost of the crea­ture. Later it was mod­i­fied to include a cost after the keyword.