actually, 1001, they DO call their attacks every time! There isn't once where you don't hear Ikkakuman say "Harpoon Torpedo" or Angemon say "Hand of Fate". They call the name each time. There is no way to pass this one up.
yes, I do see when Ikkakumon and Angemon don't say their attacks, on the episode of "The Earthquack of MetalGreymon", the second group of Harpoon Torpedos, he didn't say anything, and in "the legend of the Digi-destined" Angemon 's attack which destroyed Devimon he didn't say a thing.
I had both of them on tape, I meant to tape the earthquake of metalgreymon, and I tape the legend of the digi-destined by mistake, in the legend of the digidestined, Angemon says "my fate is unimportant!" instead of "Hand of Fate" and in the earthquake of metalgreymon, Ikkakumon first launches the three torpedos, then the background shows three explosions on top of the Monocromons and Tyrannomons, and then Ikkakumon said "Let's go Joe!"