To roll or not to roll for Ishtar

Prioritize Merlin. Support Casters are the biggest utility in Fate Grand Order, you can get your single target and aoe's out of the way in 2019. I personally play Fate Grand Order just for gameplay so I recommend to you not to spend anything on Ishtar. Merlin only has 2 rate up banners, he is the rarest servant in the game so I say go all out on Merlin. If you get spooked by Waver you will be just as good but the 2 have different roles. Merlin with the challenge quest hard content role. Waver is for farming but you can use him on hard content due to his amazing Noble Phantasm charge and all around buffs such as attack, defense and critical, also has reduces the charge on all enemy's and defense down along with inflicting poison on his Noble Phantasm. Yes go all out on any support casters who are on rate up banners. They make the game 50 times more easier, I will give you an example. I couldn't get through the last part of Camelot, than when I pulled Waver on the GSSR it made the content so much easier and didn't have to rely off of quartz revives. You are free to play so I hope the gacha gives you what you need. I hope you get him man, good luck on your summons.

I'd prioritize King Hassan, but if you really like Ishtar go ahead. Merlin is so popular that really, your support list will be full of him so you can avoid him.

The only situation where Merlin really shines will be at Setsubun but that's still far away.

As a fellow ftp player, I'd say go for a roll. Though I'm saving for merlin, I rolled for Scathach (coz fck I love her) and thankfully my luck kicked in I got her on my first 10x roll. I also did a reroll on Jalter in the past sacrificing my old account (Coz she's my one true waifu i ddnt know that shes good on gameplay coz im a total noob that time.) But anyway If u really like her then roll. But if ur on gameplay wise, I suggest u wait for merlin like everyone says.

il give you my 2 cent as a fellow f2p.
I will roll for Ishtar.
2 reson.:
1- i love rin since the original F/SN. And i really want her becouse of thet.
2- becouse i am a f2p. no metter what, but unless i avoid any kind of roll for 6 mounth i am not gonna have any rasonable chance to get any SSR on rate up. So unless my luck kick in, i am not going to get a servant anyway. So i will alweys roll when i see servant i like and i have some sq. The only freedom we f2p can have is not to spend sq on bait banner or on servant we dont like.