So I guess you don't have a lot of electrums to up a deck.
My suggestion is to play a Grabbix with the 6 Cremations upped in Bronze league. No rares, nothing expensive once you have upped the cremations.
To get the electrums for that, I suggest mono-death against AI3.
That's what I did 1 month ago to get the 3 Lobotomisers needed to farm FG.
![Smiley :)](https://elementscommunity.org/forum/Smileys/solosmileys/smiley.gif)
In Silver and Gold, you can face decks with Dexterity, which changes everything (ie: interrupts your chain). And Platinium requires a specific fully upped deck to be profitable without good chances to get that many spins. So, Bronze, definitely.