/ride: Makes entities ride other entities, makes them get off, or summons a rider or mount.
Syntax
<angle brackets> are required, [square brackets] optional. /ride has 5 forms:
/ride <riders: selection> <mode: ridemodestart> <ride: selection> [teleportRules: teleportrules] [howToFill: filltype]
/ride <riders: selection> <mode: ridemodestop>
/ride <rides: selection> <mode: ridemodeevict>
/ride <rides: selection> <mode: ridemodesummonrider> <entityType: entitytype> [spawnEvent: id] [nameTag: id]
/ride <riders: selection> <mode: ridemodesummonride> <entityType: entitytype> [rideRules: riderules] [spawnEvent: id] [nameTag: id]