@ecto1337 400-450 dec budget renting and usual return to 600 dec if you play enough plus i get a total of 8 chest in silver 1 by doing the quest 2x which i made my collection, luckily by opening chest got my epics to lvl 3 reward cards, i will breakdown my renting budget and rented cards soon 
as you can see all my common cards are maxed out to lvl 5 as a reward but the rare ones are tricky for me i got epics maxed but rares are hard to come by haha also i bought a single djinn oshanus so i can complete it to lvl 2 cause i had 2x chest reward a while back
RE: How to beat bots (zombies) easily in splinterlands silver league