I use the same build too =) but I don't rush Aftershock as my first item. I buy Stormcrown for faster farming.

I don't use contraption since I can buy scout traps and flares at the shop, which is why I always buy Warhorn. Both are good items, but as a Tank I'd prefer Warhorn for Catherine. Well, it still depends on your strategy and gameplay. But Contraption give you lesser health but decent CDA, but in team fights, you'd need burst of speed for chasing and retreat, and more hp. For me still worth it (Warhorn). Since you play support, IGC is the first item to buy initially.

card crafting!

i experienced this a lot. i have IGC but my ally jungler keeps pinging me, thinking i'm stealing his creeps..

yeah.. i just unlocked him and already played a couple.. havent lost a match since playing with him.. and i agree he's strong compared to the new comers..

I would like to suggest that The Kraken has its saparate damage level for your team and your opponents so that the last hit rule is eliminated. Anyone agree?

Really nice suggestion thou but, IMO this will not work. What if you don't agree on positions? There would be times your team mates will not change their Hero to put up a good strategy and team balance. I think team strategies are made while in-game. I bet you already have your set of Items and gamestyle in mind before playing.

I did this insta-lock thing when i just started playing this, but told myself to practice other characters to balance the team. now i don't do this anymore. i see first who their hero's are then select either a laner or a jungler to balance the team. but i do play laner most of the time.