The auction starts:
2♦* - pass - 2♠* - pass
pass - Dbl* - pass - ?
2♦ shows a multi with a weak hand, 5+M and poor strength
2♠ is P/C
Dbl shows a hand that would bid like the auction went 2♠-Dbl (so normal takeout - not balancing, probably 4♥, <4♠ and tollerance for unbid suits, opening values)
What do you do?