This is technically not a replay, but since I've beaten Platinum once and Pearl twice, for all intents and purposes I've already beaten this game.
So why the heck did I buy Pokémon Diamond when I've already got Pearl and Platinum? Redundant storage, basically, motivated by compatibility issues. I won't go into the true depths of my insanity here, but Platinum had been my main cart, with a few hundred shiny captures in there. That was all well and good, but when I recently downloaded
My Pokémon Ranch and realized I kind of loved watching my shinies run around on a farm (whatever don't judge me

), I found out that Platinum was not compatible with it.
I took the opportunity to organize my collection across a few carts, since transferring everybody over to Pearl would have exhausted all my storage space. Half my shinies are now linked with Diamond, half with Pearl, and all of those are currently living in my Wii. In the case of a Wii catastrophe, I also took one shiny of each species and put them in my HeartGold cartridge for redundancy (and also because it's my favorite Pokémon game).
Yup.
So why the heck did I
play through Pokémon Diamond, then? Well, you need to in order to get the Poké Radar, which is what I use to find my shinies. But I also wanted to try something I'd never done before: beat the game with only one battling pokémon.
I thought this was going to be difficult, but it was surprisingly easy. I went with Turtwig because Torterra rules, and watched his strength against ground moves and beastly attack stat own everything in his path. I barely had to use potions in actual battles at any time. I realize a lot of the ease was due to this starter choice, though. If I'd chosen Chimchar I know that life would have been very difficult for us, what with all this Earthquake-spamming I saw among the Elite Four who were desperately trying to take out my fantastically overpowered war turtle.
Speaking of, I have to tell you, I felt a legit surge of joy when Turt took down the champion's Milotic with a critical hit in the
second turn. This champion has always been the hardest for me, and is infamous among players for being difficult. Approaching the battle makes me nervous. This time I was never at a disadvantage, and I was only using
one pokémon! Seriously, this kinda blew my mind.
As a general rule I've always filled up my parties to the maximum and kept everyone evenly-leveled. Now I think I've been doing it wrong all these years!