A wrong interactive about Urza's Saga and Echoing Deeps

[Greasefang]

I'm playing Scale cards in Modern, and i found that when i play Echoing Deeps as a copy of Urza's Saga in my graveyard, Deeps will enters the battlefield with 2 lore counters instead of 1, and abilities of Chapter I and Chapter II triggers each twice. This issue makes me have 1 less construct token, weaks my army, makes me lose the game. #11826

[alexander-novo]

[[Echoing Deeps]] [[Urza’s Saga]]

[github-actions[bot]]

Echoing Deeps - (Gatherer) (Scryfall) (EDHREC)

Land — Cave You may have Echoing Deeps enter the battlefield tapped as a copy of any land card in a graveyard, except it's a Cave in addition to its other types. {T}: Add {C}.

Urza's Saga - (Gatherer) (Scryfall) (EDHREC)

Enchantment Land — Urza's Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Urza's Saga gains "{T}: Add {C}." II — Urza's Saga gains "{2}, {T}: Create a 0/0 colorless Construct artifact creature token with 'This creature gets +1/+1 for each artifact you control.'" III — Search your library for an artifact card with mana cost {0} or {1}, put it onto the battlefield, then shuffle.

[alexander-novo]

Presumably you had an effect that increases the amount of lore counters put on things? What is the incorrect interaction here?

[ssk97]

Presumably you had an effect that increases the amount of lore counters put on things? What is the incorrect interaction here?

No, testing with just those two cards and nothing else has it enter tapped with 2 counters and with 4 triggers going on the stack with the name of "Echoing Deeps" still on the triggers. Initial investigation suggest that there's something going wrong with the ETB replacement effect that's causing it to be applied twice, don't have the time to go further right now.

[alexander-novo]

Can confirm

[alexander-novo]

There's something wrong with how the copy effect is applied. When I attempted to copy the copied land with [[Vesuva]], it asked me if I want to use Echoing Deeps' ability again, but it should have just become another copy of Urza's Saga. Also when Vesuva enters as a copy of a normal Urza's Saga, it doesn't produce this behavior.

[github-actions[bot]]

Vesuva - (Gatherer) (Scryfall) (EDHREC)

Land You may have Vesuva enter the battlefield tapped as a copy of any land on the battlefield.