firstly.. all my 3x GAs and 1x LR with 15speed now.. I will stop at here till further lvl...
okay, here's my analysis below:
Leader = GF, Front = GA1) taking lv3 & lv4 lands, GA will definitely die off first unless it can have the first Instant Kill(with high ATK like GF)...
2) u left with GA and 2 enemy monsters then, definitely with above 20spd GA will attack first or from GF's initiate pre-emptive skill... then the leader will ATK GA...
3) if GA can't kill the front monster in 1 hit KO, then 3rd turn GA will be damaged twice...
Leader = GA, Front = GF1) with above 20spd GF, he will attack first...
2) if GF cant 1hit KO the front enemy, GA will be damaged by it...
3) same 1st turn, if GA killed the front enemy, then the leader might attack this GA(leader)...
So, my conclusion, no matter how you place it, most importantly is that in 1st round, your monster(s) has to finish off 1 enemy... then you have the chance to win the battle with very minimal dmg...
for me, I produce 2k GA(leader) and 1.5k GF(front) for lv4 lands... GA has fuking low DEF so will need to produce as high as possible to outnumber the lv4 land monsters... the higher unit counts you have, the lower damage you will receive.... and same goes for, the higher unit counts you have, the higher damage you will inflict...