Most common moves in RBY OU

Out of the 15 existing types in first generation, only 13 are listed below, since no Dragon-type nor Poison-type moves are used in the tier.

Accuracy between parentheses is taking into account the (1/256) probability that has every move to fail.

Summary

Bug-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Pin Missile		14	85 (84,4)	32	Hits 2 to 5 times.

Electric-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Thunderbolt		95	100 (99,6)	24	10,2% chance to paralyse the target. Cannot paralyse an Electrik type Pokémon.
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Thunder Wave		-	100 (99,6)	32	Paralyses the target.
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Fighting-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Counter		-	100 (99,6)	32	Deals double damage if hit by a Normal or Fighting-type move. Priority -1.
Double Kick		30	100 (99,6)	48	Hits 2 times.
Seismic Toss		-	100 (99,6)	32	Deals damage equal to the user's level. Can hit Ghost-type Pokémon.

Fire-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Fire Blast		120	85 (84,4)	8	30,1% chance to burn the target. Cannot burn Fire-type Pokémon.
Fire Spin		15	70 (69,5)	24	Prevents the target from attacking for 2 to 5 turns.

Flying-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Drill Peck		80	100 (99,6)	32	-

Ghost-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Confuse Ray		-	100 (99,6)	16	Confuses the target.
Night Shade		-	100 (99,6)	24	Deals damage equal to the user's level.

Grass-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Mega Drain		40	100 (99,6)	16	The user recovers 50% of the damage dealt.
Razor Leaf		55	95 (94,5)	32	Chances to inflict a critical hit are multiplied by 8.
Sleep Powder		-	75 (74,6)	24	Puts the target to sleep.
Stun Spore		-	75 (74,6)	48	Paralyses the target.

Ground-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Earthquake		100	100 (99,6)	16	-

Ice-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Blizzard		120	90 (89,5)	8	10,2% chance to freeze the target. Cannot freeze an Ice-type Pokémon.
/
Ice Beam		95	100 (99,6)	16	10,2% chance to freeze the target. Cannot freeze an Ice-type Pokémon.
/

Normal-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Body Slam		85	100 (99,6)	24	30,1% chance to paralyse the target. Cannot paralyse Normal-type Pokémon.
Explosion		170	100 (99,6)	8	Causes the user to faint. Halves the Defense stat during damage calculation.
Hyper Beam		150	90 (89,5)	8	The user cannot attack nor switch out next turn unless the attack caused the target to faint or broke its substitute.
Lovely Kiss		-	75 (74,6)	16	Puts the target to sleep.
Recover		-	-	32	The user recovers 50% of its max HP.
/
Screech		-	85 (84,4)	64	Lowers the target's Defense stat by 2 stages.
Self-Destruct		130	100 (99,6)	8	Causes the user to faint. Halves the Defense stat during damage calculation.
Sing		-	55 (54,7)	24	Puts the target to sleep.
Soft-Boiled		-	-	16	The user recovers 50% of its max HP.
Slash		70	100 (99,6)	32	Chances to inflict a critical hit are multiplied by 8.
Substitute		-	-	16	Puts the user behind a substitute by sacrificing 25% of its max HP.
Swords Dance		-	-	48	Boosts the user's Attack stat by 2 stages.
Wrap		15	85 (84,4)	32	Prevents the target from attacking for 2 to 5 turns.

Psychic-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Agility		-	-	48	Boosts the user's Speed stat by 2 stages.
Amnesia		-	-	32	Boosts the user's Special stat by 2 stages.
Hypnosis		-	60 (59,8)	32	Puts the target to sleep.
Psychic		90	100 (99,6)	16	33,2% chance to lower the target's Special stat by 1 stage.
Reflect		-	-	32	Doubles the user's Defense stat during damage calculation until it is switched out.
/
Rest		-	-	16	Puts the user to sleep for 2 turns, restauring all of its HP and curing any non-volatile status condition.

Rock-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Rock Slide		75	90 (89,5)	16	-

Water-type moves

Name	Cat.	Power	Accuracy	PP	Description/Effects
Bubble Beam		65	100 (99,6)	32	33,2% chance to lower the target's Speed stat by 1 stage.
Clamp		35	75 (74,6)	16	Prevents the target from attacking for 2 to 5 turns.
Surf		95	100 (99,6)	24	-