The average token in the Expert chaos bag is usually somewhere between a -3 and -4, which means directly investigating a 2-shroud location with an Intellect value of less than 5 tends to go very poorly
There are a few peculiarities - you attack yourself, effects that target an opponent target you instead, and a few cards may not work like they do in duels or multiplayer
Playing against an archetype with a strong grind game, you may want to risk more to get the duel over with before you get out-resourced
Hyper Synchron X LIGHT Level 4 [ Machine / TunerEffect ] ATK 1600 DEF 800 If this card is sent to the Graveyard for the Synchro Summon of a Dragon-Type monster: That monster gains 800 ATK, also banish that face-up monster during the End Phase
In the FF-limited environment, it is common for the opening to end with just preparing mana via tap-in lands, so even these creatures without evasion abilities have the potential to work as seeds
The Branded Fusion Engine or Skill Drain can also deal with Lovely Labrynth quite efficiently