Suggestion:
Categorise the Graveyard into Rounds - 1, 2 and 3.
Card that enter the Graveyard during a particular Round are listed under that Round category.
If a card leaves the Graveyard (eg ressurected, shuffled into deck, etc), and then re-enters the Graveyard for whatever reason (removal, usage, etc), it naturally gets listed under the current Round category.
Mystic Echo is changed to the following:
Play a ST special card from your Deck, or a previous Round in the Graveyard.
This means in Round 1 it would function only as a special card tutor from Deck.
In Round 2, it can play any ST special card under the Graveyard Round 1 section, or tutor a ST special from Deck.
In Round 3 it can play any ST special card under Graveyard Rounds 1 and 2 sections, or again tutor a ST special from Deck.
Reasoning: This would prevent any ability to double up the same special card in the same round (eg WoB), while still maintaining the speical card "echo" flavour of this leader ability and using a powerful special card across separate Rounds.
Secondly with that interaction prevented, it may also be possible toun**** improve Harmony as an archetype, which in general was not excessively problematic with other leader abilities. Not saying to revert, because it wasn't the most interesting design anyway, but certainly give space to improve it in a more interesting way.
Categorise the Graveyard into Rounds - 1, 2 and 3.
Card that enter the Graveyard during a particular Round are listed under that Round category.
If a card leaves the Graveyard (eg ressurected, shuffled into deck, etc), and then re-enters the Graveyard for whatever reason (removal, usage, etc), it naturally gets listed under the current Round category.
Mystic Echo is changed to the following:
Play a ST special card from your Deck, or a previous Round in the Graveyard.
This means in Round 1 it would function only as a special card tutor from Deck.
In Round 2, it can play any ST special card under the Graveyard Round 1 section, or tutor a ST special from Deck.
In Round 3 it can play any ST special card under Graveyard Rounds 1 and 2 sections, or again tutor a ST special from Deck.
Reasoning: This would prevent any ability to double up the same special card in the same round (eg WoB), while still maintaining the speical card "echo" flavour of this leader ability and using a powerful special card across separate Rounds.
Secondly with that interaction prevented, it may also be possible to