Name:Sand Silos
ManaCost:no cost
Types:Land
K:CARDNAME enters the battlefield tapped.
K:You may choose not to untap CARDNAME during your untap step.
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | IsPresent$ Card.Self+tapped | Execute$ TrigStore | TriggerDescription$ At the beginning of your upkeep, if CARDNAME is tapped, put a storage counter on it.
SVar:TrigStore:DB$PutCounter | Defined$ Self | CounterType$ STORAGE | CounterNum$ 1
A:AB$ Mana | Cost$ T SubCounter<X/STORAGE> | Produced$ U | Amount$ ChosenX | CostDesc$ {T}, Remove any number of storage counters from CARDNAME: | References$ X | SpellDescription$ Add {U} to your mana pool for each storage counter removed this way.
SVar:X:XChoice
#ChosenX SVar created by Cost payment
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/sand_silos.jpg
Oracle:Sand Silos enters the battlefield tapped.\nYou may choose not to untap Sand Silos during your untap step.\nAt the beginning of your upkeep, if Sand Silos is tapped, put a storage counter on it.\n{T}, Remove any number of storage counters from Sand Silos: Add {U} to your mana pool for each storage counter removed this way.