Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by banishing 1 FIRE and 2 WATER monsters from your Graveyard, and cannot be Special Summoned by other ways. Once per turn: You can discard 1 card to target 1 monster on the field; destroy that target.
If your deck contains many WATER and FIRE attribute monsters, you can set Magical Merchant to send monsters to the graveyard until you get a spell/trap card. The monsters sent to the graveyard can then be used to summon Frost and Flame dragon.
Last Gamble would be useful in a deck that aims to summon this monster. When using the skill, discard FIRE and/or WATER monster monsters. Then, after summoning Frost and Flame Dragon, try to go for an OTK that turn.
|Actions||Discards for cost|
|Banished categories||Banishes from Graveyard / Banishes from Graveyard for cost / Banishes from your Graveyard / Banishes for cost|
|Monster/Spell/Trap categories||Destroys Monster Cards|
|Summoning categories||Nomi / Cannot Normal Summon / Cannot Set|