Once I understood my deck well enough, I started building my own sideboards, not just changing a card here or there but building from the ground up
Having to pay three life for every creature card you draw adds up very quickly
In the mid-game, I use 'Pyroglaive Mentor', 'Flame-Blessed Gecko', and 'Thought-Stalker Warlock', which have bonuses 'if an opponent lost life this turn', to corner the opponent
Scyther has always been one of the cooler-looking Pokemon from Generation 1, with a design that appeals to collectors who gravitate toward the more fierce and battle-ready creatures in the franchise
An interesting bonus interaction is pairing Rhys with the Airbending mechanic from Avatar: The Last Airbender, which still allows you to operate at instant speed and maintain flexibility
It was also because I realized I could only realistically use the deck at full power for maybe one more tournament, because a few of the powerful cards in the deck will/most likely will be hit by the banlist