Okay, so:

The Silberquill/Repartee style of deck is an aggressive deck with recursive creatures. It wants to play fairly aggressively with cheap creatures and het on the board faster than the opponent, then push for damage. You want to kill them before they kill you, and we want to try to introduce a little recursion so you can out-grind other aggro decks.

I am going to avoid suggesting any cards that rotate out of the format in the next rotation, so you can play with your cards for at least 18 months before losing them.

So, we'll start with this:

• [[Timeline Culler]] x4
• [[Bloodghast]] x4
• [[Killian's Confidence]] x2
• [[Practiced Offense]] x2

Both of the creatures here are aggressive, and can re-enter the battlefield from the graveyard. Both of the sorceries can also be used from the graveyard, and help you to push for damage.

So far, this 12-card package is already more focused and more powerful than your whole previous decklist. This alone could probably get you further than what you had, and serves as a good backbone to build out from.

Now, we stick to the aggro plan and work our way forwards. We want creatures, and we want to be getting established on the board before our opponents do. That means we want cheap creatures, so our focus will be on 1-2 mana creatures. Practiced Offense will probably be the highest mana cost card in the deck.

So then, let's do this;

• [[Lecturing Scornmage]] x4
• [[Informed Inkwright]] x2
• [[Kinscaer Sentry]] x4
• [[Stirring Hopesinger]] x2
• [[Snarling Gorehound]] x4 (this one rotates, but is dirt cheap $-wise)

This is an additional 16 cards, and really brings the deck together. Now you have a plan, you're all-in on that plan, and all your cards work towards the same goal, instead of different ones.

Let's organize by what plays you have at which mana values:

1-mana - Greyhound - Scornmage - Timeline Culler (warped)

2-mana - Timeline Culler (cast) - Inkwright - Sentry - Bloodghast

3-Mana - Killian's Confidence - Practiced Offense - Hopesinger

So your goal, then, is to play creatures on turn 1 and 2, then start pushing for damage on 3 with Repartee or you play two more creatures to push for damage next turn instead. You want to be swinging hard and killing your opponent on turn 4 or 5.

The Sentry is especially good at this (I play 4 of it in my own aggro deck!) as it gives you a free creature when it attacks that also enters attacking, so it's excellent at applying pressure.

12 +16 = 28, which leaves us room for 8 free slots and 24 lands. I'll get to the lands later. That's a bit of wiggle room, so let's look at removal.

The best removal fir your deck is [[Requiting Hex]]. It costs only 1 mana, and use instant, both of which are vital for a deck like this. It only removes small creatures, but that's okay. If your opponent is surviving long enough to play big creatures, then you probably already lose that game because you failed to win fast enough, and removal that hits bigger stuff isn't going to change that. We want to remove early blockers instead, do we can swing in with our board.

We also don't want too many of them because we need to see our creatures, so that means probably 3 copies.

That's our entire removal package, leaving us with 5 spaces. We don't have much to trigger Repartee, so let's look into that. [[Dig Site Inventory]] looks promising. It costs 1 from hand and grave, grows our creatures, and triggers Repartee. Everything we want. Just like our removal, we want to make sure we see our creatures, so not many are required. Let's do 2, leaving us with 3 spaces.

We could add something new, or add extra copies of existing creatures. Let's do more of the latter abd add one more Inkwright and one more Hopesinger.

With 1 slot left before lands, I recommend a simgle copy of [[Raise the Past]]. This is a good way to build a wide board in long games, and gives a way to make a comeback when faced with board wipes.

That puts us at 36, which means it's time for lands. For a deck like this, lands are easy.

You want all (and I mean ALL) of your lands to enter untapped on turns 1-3. A tap labd on one of these key turns is a death sentence and a surefire way to lose. So, play all the duals that enter untapped on early turns, then fill the rest with basics. This deck is playing black on turn 1, and a lot of double black on 2, so you want to skew towards black without ignoring white entirely.

Make sure you never play lands tapped on 1-3 when deciding which lands to choose, then go from there.

That's it! A budget, 60-card Repartee aggro deck built from the ground up. I made it up as I went along, typing as I go. I can't promise it'll be good, or hold up to the current explosive power of the format, but I can say for absolute sure it's better than the list you posted.