Forum:Chain strike and chains

just some questions to see if i get the card right.

Chain Strike says i cannot activate it if there are multiple cards7effects with the same name: 190.191.188.242 (talk) 05:25, July 11, 2010 (UTC)
 * if i activate 1 chain strike i can activate another because at the moment of activation there's only one chain strike in the same chain, right?
 * if there are 2 other cards chained with the same name (say,for example, i play shrink on my opponent monster -outside damage step- and so does my opponent on my monster, then there are 2 shrinks in the same chain. i cannot activate chain strike in that scenario?
 * when is chain link 2? like in player 1 plays mystical space typhoon, player 2 chains chain strike ? or the first one isn't chain 1?
 * finally, any suggestions on how to use this card for full advantage in a burn deck?