With the introduction of the cards Stalagg (If Feugen also died this game, summon Thaddius) and Feugen (If Stalagg also died this game, summon Thaddius), how many Thaddius' can be summoned and be present on the board at any one time?
An interesting mechanic to this card is the effect is not unique to the owner of that card, for example: If I play a Stalagg and my opponent plays a Feugen and they both trade, a Thaddius will be summoned for us both, meaning 2 Thaddius' have been summoned.
Using any means necessary how many Thaddius' can exist on the board for both players?
See if you can seperate your answer into 2 parts: what is possible in a single turn and what is possible over multiple turns.