Tree of Life
Rank	Upgrade Time	Upgrade Cost	Maintenance	Health	Slots
1	0	0	300,000	80,000	1
2	28	600,000	500,000	150,000	1
3	56	1,000,000	700,000	220,000	1
4	84	1,400,000	900,000	290,000	1
5	112	1,800,000	1,100,000	360,000	1
6	140	2,200,000	1,300,000	430,000	1
7	168	2,600,000	1,500,000	500,000	1