When this card is Special Summoned: Toss a coin and gain the appropriate effect.Heads: When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can target 1 card in your Graveyard
Trade allows you to thin your hand (and by extension, your deck), all while drawing more cards to help you find the pieces you need to execute your decks winning strategy
While 10 health gain could be strong against an opponent who heavily drafts burn, and I do highly value Inner Peace, spending a gold and a card just to gain 10 health feels weak
Combined with that card, it can be easy enough to play a demon for free, and then Cascade into another demon
Just use a Fusion Spell Card like Polymerization or Miracle Fusion to combine those monsters into the Fusion Monster you want to Summon
Rhinos is a great deck in its own right and is genuinely a strong choice for RCQs, as it punishes stumbles and mistakes quite easily