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The only main synergy I could think of adding would be token doublers for her Treasures or doubling her triggered abilities with Strionic Resonator or a Lithoform Engine

Also, some decks like the roll dice on demand aspect

Deepway Navigator is a good option in Merfolk decks that seek to get the most out of tapping and untapping to tap again

As long as you have enough artifact ramp or mana dorks, you can pay the cumulative upkeep cost for quite some time before having to sacrifice it

Ravenous Trap is a great trick to spring on your opponent if theyre doing some graveyard shenanigans

When Cavalier of Flame enters the battlefield, discard any number of cards, then draw that many cards