Time to make some changes to the card file. People have brought up issues in the past with all the following cards. Now it's time to see how to fix them or whether they're even salvageable. Please post your vote on each of the cards listed below. If you want to fix a card, please suggest an edit.
Remember: The set comes first, so even if you like a card, if it doesn't help the set it probably shouldn't get in.

Ignite The Ashes has been questioned at common rarity. It's also been suggested that we drop the exile clause.

• Cut it
• Leave it be
• Rework it

It's been suggested that Gleam Collector's ability is better suited to a larger body.

• Cut it
• Leave it be
• Rework it

Hidden Riches has been called "weird", "red card advantage" and unfun.

• Cut it
• Leave it be
• Rework it

Sandpit Wurm mentions cmc at common and is red "bottom of library" removal.

• Cut it
• Leave it be
• Rework it

Gruff, Wayward Wanderer is super weak.

• Cut it
• Leave it be
• Rework it

And the green card I forgot:
Viashino Suncaller - Key to an early game in-block win combo.

• Cut it
• Leave it be
• Rework it

Ignite The Ashes - Leave it be.

Gleam Collector - Rework it. It should start out a little bigger as a three or four drop. Trample might be good incentive to get its ability working (after all it can backfire).

Hidden Riches - Cut it

Sandpit Wurm - Rework it
Just make it destroy lands or lands and artifacts.

Gruff, Wayward Wanderer - ]Rework it
Gruff could probably hit lands that "share a type" to let him hit dual-type lands. Or maybe he can turn any land into a Mountain? Maybe sac any land for a random land? Dudibus is right, outside of landssdying.dec the +0 doesn't do much. If testing shows it's okay I'd let Gruff's -1 hit players too.

Viashino Suncaller -Cut it with the chainsaw. Y'know, there's enough potential here that I want to save it. Rework.

Up the Rarity or Leave it Be
Leave it be
Leave it be
Rework it to just be a stone rain or maybe Demolish
Rework it
Rework it to "Whenever another creature enters the battlefield under your control for the first time each turn..." or cut it.

rework it, i'd just up the rarity though
leave it be
leave it be
rework it
rework it, preferably give him an engine for +1 that doesn't require an opponent to have a creature
rework it

Keep Riches, rework the rest. Sandpit Wurm is supposed to be decent against engrave, but maybe it's not necessary.

i'm pretty fond of hidden riches although there's not really any ways to enable it within starstill yet

I'm surprised by the love for Riches. It's a fun design, but I'm not convinced that it's actually fun to play. And if somebody does solve the puzzle, then there's a good chance it will just become degenerate.

I don't love it, but it's fine. A two-card combo to draw some cards won't break anything. Maybe you board it in against an opponent whose artifacts you'll be destroying anyway, but even then you'd probably rather have more actual hate.

Actually, Riches draws cards for the artifacts controller. You could put it on artifacts you plan to sac or throw into combat though, or ones your opponent will want to destroy.

combat doesn't work because because it needs to be destroyed by a spell or ability and i don't think sacrificing causes destruction triggers but i could be wrong

Sacriice does NOT help

The best you can do is throw it on an Ichor Wellspring or the like before using Shatterstorm

Oops. Definitely fine, then.

Quit touching my stuff guys.

which card was yours

I agree, except you should rework Suncaller

Rework it
Rework it
Cut it
Rework it
Rework it
Cut it

Leave it be
Rework it
Cut it
Rework it
Rework it
Cut it

Sandpit Wurm was submitted for a round with the criterion "Make something that deals with Relics." Just mentioning that before people make it all about lands.

A fair bit of rewroking to do, but I suspect the fixes will be pretty easy.

Ignite The Ashes

• Cut it
• Leave it be 4
• Rework it 3

Gleam Collector

• Cut it
• Leave it be 2
• Rework it 5

Hidden Riches

• Cut it 4
• Leave it be 3
• Rework it

Sandpit Wurm

• Cut it
• Leave it be
• Rework it 7

Gruff, Wayward Wanderer is super weak.

• Cut it
• Leave it be
• Rework it 7

And the green card I forgot:
Viashino Suncaller

• Cut it 2
• Leave it be
• Rework it 5