A land that gives you a token is pretty nice, and I also like that the Adventure here can trigger your other Wizard tokens
Where Citadel runs out of steam when you get low on life, this one needs you to have a lot of sacrifice fodder and mana
Cycling can't be countered by most counterspells, but counters that work against activated or triggered abilities can shut it down
I think that this card is a serious contender even for some cEDH decks
You can still perform this combo in Legacy and Commander, and its doing more work as an answer to planeswalkers these days, too
Plasma Caster Plasma Caster is nice with Chthonian Nightmare, especially, but its a nice way to mess with blocker math, and Ive found players are really pretty scared of blocking creatures packing this equipment, so have at it