I would assume that as you only can have one type of summon in plat under your control at a time, you couldn't say, play a second dragon and choose to sacrifice the first?
Additionally, if I gain control of my opponents dragon and I have one in play, can I keep them both in play at the same time?
Thanks in advance and great game! Purchased it at Essen '13 and the chap on the stall was most helpful in securing my purchase.
Hi there, welcome to the league of chaos! I hope you will enjoy the game
Your first question: no, you can only have 1 summon of 1 type in play. And you can't just sacrifice a summon to replace it.
Your second question: no, if you steal a summon you already have in play, it goes to the discard pile.
You only have 1 playing piece for each summon type, so you can never have 2 summons of the same type in play... Though there are cards that can change (non life base) summon type!
Kindest regards, Pat