Well, Keleseth is rotating out in 6 months or so, while Leeroy will be around forever. Leeroy is just a solid craft in general for any aggressive deck.
It would help if you told us what kind of decks you like to play, and whether you want to climb or just have fun.
Yeah, I was considering the point you made about keleseth. I like hunter decks, shudderwock, and odd rogue (hence the leeroy), odd warrior, and shuffle rogue (but I don't have the cards for shuffle rogue)
Besides J4ckie's Shuffle Rogue, there is also Brian Kibler's Tesspionage (list, video), which is like a Miracle Rogue mixed with shuffle. Despite the name, Kibler said that Tess Greymane is probably the weakest card in the deck, so you can play without her. Valeera the Hollow is useful to win the value game vs decks like Odd Warrior, but the deck should be still playable without it. Zilliax could be replaced by Giggling Inventor or Vanish, I guess, although it's probably worth crafting at some point, since it fits into so many decks.
What you would need to craft for an Espionage decks is the epics: Academic Espionage, Fal'dorei Strider, Vilespine Slayer and Preparation. That's a lot of dust, but hopefully you have some of them already. J4ckie's list runs Augmented Elekk as well and while that is a good card, I think you don't really need it and there are other good 3-drops you can use (Kibler used Hench-Clan Thug).
If Preparation gets nerfed in a way that makes it incompatible with Academic Espionage or Sprint, the deck will become worse, so maybe don't craft right now and wait for the nerfs to be announced early in the coming week.
Current legendaries: Arfus, The Black Knight, Azalina Soulthief, Baron Geddon, Baku the Mooneater
Dr. Boom, Mad Genius
Skull of the Man'ari, Lord Jaraxxus, Bloodreaver Gul'dan
Thrall, Deathseer, Grumble, Worldshaker, Shudderwock
Shadowreaper Anduin
Crystalsmith Kangor, Tirion Fordring, Uther of the Ebon Blade
Archmage Arugal, Stargazer Luna
Deathstalker Rexxar, Kathrena Winterwisp
Malfurion the Pestilent
I'm thinking of crafting Keleseth or Leeroy, but I'm open to other suggestions, thanks!
What decks do you like to play?
Yeah, I was considering the point you made about keleseth. I like hunter decks, shudderwock, and odd rogue (hence the leeroy), odd warrior, and shuffle rogue (but I don't have the cards for shuffle rogue)
Hey would you link some good shuffle rogue? I've been looking for this deck but its not very popular
https://www.hearthpwn.com/decks/1180871-j4ckiechans-insane-shuffle-rogue
Zilliax or keep the dust till the next expansion and then craft the main legendary (which I think will probably be a Priest one)
Always look for neutral first, you can play more decks with it. And look for the ones from newer expansions or classic set
Besides J4ckie's Shuffle Rogue, there is also Brian Kibler's Tesspionage (list, video), which is like a Miracle Rogue mixed with shuffle. Despite the name, Kibler said that Tess Greymane is probably the weakest card in the deck, so you can play without her. Valeera the Hollow is useful to win the value game vs decks like Odd Warrior, but the deck should be still playable without it. Zilliax could be replaced by Giggling Inventor or Vanish, I guess, although it's probably worth crafting at some point, since it fits into so many decks.
What you would need to craft for an Espionage decks is the epics: Academic Espionage, Fal'dorei Strider, Vilespine Slayer and Preparation. That's a lot of dust, but hopefully you have some of them already. J4ckie's list runs Augmented Elekk as well and while that is a good card, I think you don't really need it and there are other good 3-drops you can use (Kibler used Hench-Clan Thug).
If Preparation gets nerfed in a way that makes it incompatible with Academic Espionage or Sprint, the deck will become worse, so maybe don't craft right now and wait for the nerfs to be announced early in the coming week.
Should I craft hagatha?