>>21369108110 base speed, in RBY higher speed caused higher crit chance, so every move had >20% chance of a crit
STAB body slam for a further 30% chance of para and good damage regardless
STAB Hyper beam, in RBY when you knocked something out with hyper beam, you avoided the recharge
EQ for Gengar (who Persian can't beat
>>21369142)