Hier was ich auf der Wotc Seite gefunden habe. Stimmt aber zumindest was die Bewegung angeht nicht mit eurer Auffassung überein. Ich denke mal das ich evasion mit einem hohen Ride check erlauben werde und wenn dieser mißlingt dann den Save mit einem Malus versehen werde.
Basics of Mounts
The basics of mounts are well scattered through the rules. Important stops on our road to understanding mounts include the description of the Ride skill on page 80 in the Player's Handbook, the rules for mounted combat on page 157 of the Player's Handbook, and the rules for mounts on pages 204-205 in the Dungeon Master's Guide. Here's an overview:
A mount must be at least one size category bigger than the rider.
Many creatures have the Strength to carry another creature of the same size category, but the game places severe restrictions on which creatures can share space on the battlefield with others (see next point).
Even if a creature is one or more size categories bigger than you, it can't serve as your mount if it lacks the Strength to carry you and your gear.
A mount and rider share the same space on the battlefield.
For all game purposes, you and your mount function as a single unit on the battlefield. Your mount continues to use its own space and reach while carrying you. You effectively use your mount's space and your own reach (or whatever extended reach your weapon gives you) while mounted. While you're mounted, any attack that can reach a square in the space you and your mount jointly occupy can affect you or your mount (it doesn't make a difference which square). Likewise, you measure your reach for your melee attacks and the range for your ranged attacks from any square you and your mount jointly occupy. You don't get cover from your mount unless you use the Ride skill to get it, and your mount doesn't block your attacks and provide your foes with cover.
Normally, you and an ally cannot share the same space on the battlefield unless one of you is helpless or a lot bigger than the other (see page 148 in the Player's Handbook and page 29 in the Dungeon Master's Guide).
Your mount handles movement for you.
When your mount moves, you move along with it, which means that you're using your mount's speed rating. Your mount, however, is actually doing the moving, and that leaves you free to do something else while your mount moves, such as making a ranged attack. You can't always act effectively while your mount moves, however. For example, if your mount moves more than 5 feet and you make a melee attack in the same round, you can make only a single attack.
You continue to move with your mount until you fall off the mount or deliberately dismount.
You and your mount act on the same initiative count.
When you're riding a mount, roll initiative normally. When your turn comes in the initiative order, you and your mount act together. Riding an untrained mount in a battle can keep you from acting. If your mount is smart enough to act on its own, it might function as an NPC and keep its own initiative number, which could prove inconvenient for you (see Intelligent Mounts in Part Five for details).
A mount can give you an advantage in melee.
If you're mounted and you make a melee attack against a foe that is on foot (that is, not mounted itself) and who is one or more size categories smaller than your mount, you get a +1 bonus on your attack roll for being on higher ground. If the creature you attack is on higher ground than you and your mount, you don't get a bonus on your melee attack.
Moving While Mounted
When you and your mount move, the two of you use your mount's speed rating, adjusted for the mount's encumbrance and the terrain. Because your mount takes you along with it when it moves, a move for your mount also counts as a move for you. (See Rules of the Game, All About Movement for notes on what constitutes movement.) Even though you're not propelling yourself, you still spend time moving. So, for example, if you and your mount move, neither you nor your mount can take a 5-foot step during the same turn.
You can make Ride checks to affect your mount's movement, as noted in the Ride skill description and summarized below: