Scroll hand/field		0.4	
Play monster			0.8
Attack monster			5.1
Direct attack			4.0
Damage					1.0 per 2300 LP
Fusion + inputs			~5.3 (depends on monster name lengths)
Fiend's Hand effect		4.5
Beastking effect		4.2
Discard slot 1			1.4

Full turn (enemy set)	7.4
Full turn (trap)		9.3
Full turn (element)		10.8

NOTES
- Slot 4 summon + slot 3 attack seems to be faster than slot 1 attack + slot 3 attack
- Discarding slot 1 is definitely worth it in some cases
- Taking an extra turn is only 8.5 seconds slower than an extra attack (7.4+5.1-4.0), so it can be worthwhile