Can I play Superior Energy Retrieval while my opponent has Toedscruel with the "Slime Mold Colony" Ability active?
If you do that you would discard two cards for Superior Energy Retrieval, but you would not get to retrieve any energy cards from your discard pile.
Source: TPCi Rules Team (2023-11-09)

Relevant cards

Note: All applicable cards may not be listed below.
SV4_17
SV4_17
SV2_189