Here I will show you my ideas for some Spellfire Cards!  I'm not saying that they will ever be published, but I thought it wouldn't be a bad idea to show them.
NAME
LVL
WORLD
TYPE
DESCRIPTION
The Sussman Zone
 
AD&D
Realm
This realm's king has multiple personalities. Therefore, it counts as two realms for game winning purposes. Any holding may be attached to this realm. 
Kheric Virus
 
-
Event
Only psionicists and heroes retain their abilities until the end of your turn. 
Inatsiv
9
Ravenloft
Monster
Immune to all offensive spells, artifacts, and Ravenloft champions' powers. Send Inatsiv to Limbo until the end of your next turn to draw two cards. 
Abyssal Black Hole
 
-
Event
Send all cards involved in combat to Abyss, regardless of powers or immunities. Player of this event chooses if spoils are drawn or if attack may continue. 
Vulture Figurine
+3
-
M.I.
Attached champion can fly and is immune to all cards that hurt flyers. Champion's allies can fly and allies that already fly are doubled in level. 
Someone Trashed the Maze!
 
-
Event
The pride of the zone has been ruined! Play this event on a player, and his highest level champion in play confesses to the crime. The champion may not do anything, and the champion's owner draws one less card per turn. Lasts until dispelled. 
Pug
+4
-
Ally
This champion's allies already in play are doubled in level and future allies played by the champion are immune to all spells. 
Change is a Good Thing
 
Forgotten Realms
Rule
If a player has at least six cards in his or her pool, he/she may discard them and take up to six cards from his discard pile and put them in his/her pool.