Typewriter strikes your word in one character at a time with a caret advancing ahead of it and blinking where the next letter will land. No effects on the letters themselves — the pacing is the effect.
Three keyframes: tw-show reveals each character on a stagger, tw-move advances the caret to keep pace with it, and tw-blink runs the caret's own cycle independently so it keeps blinking after the typing finishes.
Yes, and it is one of the few styles here where a full sentence works well — the effect is entirely about pacing, so more text means more of the effect rather than less legibility.