I think getting other class spells is not going to be as valuable other class Minions, mostly because of the random targeting mechanic.
I did some fuzzy math on getting class minions from some of the 'random summons' and this is what I got.
Face Collector (Random Legendary)- 56% to get a class minion (45/80)
Tanglefur Mystic (Random 2-drop)- 50% (44/89)
Shallow Gravedigger (Random DR)- 47% (33/69). I'd give this a priority since DR are worth more than battlecries on the replay.
Ravencaller (2 random 1-drops)- 37% x2 (20/55)
Bone Drake/Swamp Dragon Egg (random dragon)- 25% (5/20)
3
Loved this shit. My win against Infinite Toki consisted in 3 chapters:
1st chapter:
I couldn't stop Infinite Toki rng and mine was a pain in the ass (I drew 4 Ice Block in the first 5 turns). So after a few survival turns she killed me but Rewind saved me.
2nd chapter:
I discovered Coldarra Drake and I thought it was over (at this point I didn't know about the existence of Alternate Timeline). I manipulated the rng to win the game and after Infinite Toki used her third Ice Block, she showed up this beautiful card. Fuck yeah.
3rd chapter:
The third round found me at 22 HP and without Coldarra Drake. After a few turns I thought it was over but I survived 3 turns in a row at 3 HP and no Ice Block (thanks rng). I managed to play Time Warp with Double Time (2 extra turns) and the tempo just got me the game. A few turns later Infinite Toki went out of cards and it was over.
This game took almost an hour. But I regret nothing. Thanks Blizzard and whoever proposed this card.
2
+1 if this card saved your ass against Infinite Toki
2
I thought this card was bad until I played it a few times in Kingsbane Rogue after Witchwood launch.
It's clear you get 3 less attack for 1 less mana and you need to combo the card to activate the effect. But the card cost (3) makes it a lot more playable than Naga Corsair. It's also very easy to combo the card because of the low cost and it makes wonderful sinergy with Shadowstep and Valeera the Hollow's hero power.
+1