suggestion: count hint

Some card like those that produce mana based on the count of something (that is not track already) and some other could benefit for adding a hint that tell you how many you would get instead of you needing to count it yourself which can be error prone, like for example:
- [ ] Mana Geyser
- [ ] Gaea's Cradle
- [ ] Serra's Sanctum
- [ ] Tolarian Academy
- [ ] Storm the Vault / Vault of Catlacan
- [ ] Growing Rites of Itlimoc / Itlimoc, Cradle of the Sun
- [ ] Magus of the Coffers
- [ ] Cabal Coffers
- [ ] Cabal Stronghold
- [ ] Crypt of Agadeem
- [ ] Songs of the Damned
- [ ] Kydele, Chosen of Kruphix
- [ ] Rofellos, Llanowar Emissary
- [ ] Elvish Guidance
- [ ] Priest of Titania
- [ ] Elvish Archdruid
- [ ] Wirewood Channeler
- [ ] Overgrown Battlement
- [ ] Bloom Tender
- [ ] Faeburrow Elder
- [ ] Brightstone Ritual
- [ ] Battle Hymn

some non-mana producing cards include:

- [ ] Sphere of Safety
- [ ] Collective Restraint
- [ ] Elvish Promenade
- [ ] Immaculate Magistrate
- [ ] Zenith Flare

Of course, in general it does not matter much if those resource that are counted are in your control, 1,2,3,...,_a lot_ is good enough most of the time, but in particular _Mana Geyser_ depend on your opponents, and well knowing how much _a lot_ is will determine if you go for a big play or not.

Thanks.