implement ranger's cache
implement ranger's cache

cryogen/throneteki,jbrz/throneteki,Antaiseito/throneteki_for_doomtown,Antaiseito/throneteki_for_doomtown,ystros/throneteki,gryffon/ringteki,samuellinde/throneteki,cryogen/gameteki,jeremylarner/ringteki,jeremylarner/ringteki,DukeTax/throneteki,jbrz/throneteki,cavnak/throneteki,gryffon/ringteki,gryffon/ringteki,cryogen/throneteki,DukeTax/throneteki,cryogen/gameteki,jeremylarner/ringteki,cavnak/throneteki,samuellinde/throneteki