the cases of $w_X<-1$ never arrive at the $\Lambda$CDM fixed point; the GCG case ($w_X=-1$) ends at the $\Lambda$CDM fixed point; while the cases of $w_X>-1$ have passed through this fixed point. Fig.6 displays the cases under a fixed $w_X$. We show here $w_X=-1.2$, a phantom. Trajectories correspond to zero, positive, as well as negative values of $\alpha$ are all displayed in this diagram to depict a complete statefinder diagnostic. It is interesting to see that the trajectories can pass through the $\Lambda$CDM fixed point under a phantom case when $\alpha<0$. This is because a negative $\alpha$ makes dark energy component transfer energy flow to dark matter component. We notice that the normal phantom case ($\alpha=0$) evolves its trajectory along a vertical segment. Comparing with the quiessence case [@sahni; @alam], the phantom case reposes on the left of $\Lambda$CDM point, namely the region $s<0,~r>1$, and evolves upwards; while the quiessence case reposes on the right of the $\Lambda$CDM point, namely the region $s>0,~r<1$, and evolves downwards. Interestingly, under a fixed $w_X$, the present statefinder points as well as the $\Lambda$CDM fixed point locate on a straight line. This is because when $w_X$ is fixed, the relationship between $r_0$ and $s_0$ 