What cards can be placed as this Digimon's digivolution cards by this card's [On Play] [When Digivolving] effect?
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1 play cost 5 or lower card with the [Sea Beast] or [TS] trait or 1 play cost 5 or lower card with [Aqua] or [Sea Animal] in any of its traits.
Source: BT24-029 Whamon