I ' d go 13 for MireStrand then . Here ' s the manabase 1 Blood Crypt 3 Bloodstained Mire 1 Darkslick Shores 2 Flooded Strand 2 Island 1 Mountain 4 Polluted Delta 1 Spirebluff Canal 2 Steam Vents 1 Swamp 1 Watery G r a v e a n a l y s i s h o w m a n y c o l o r e d m a n a s o u r c e s d o y o u n e e d t o c onsistentlycastyourspells is a great explanation of how many URB sources a deck needs to run . Normally a Grixis Delver manabase should consistently support T 1 U , T 1 R , and T 2 B , which translates into at least 14 blue , 14 red , and 13 black sources . <| sep |> WBTB , or Wake Back To Bed , is a common and relatively simple technique for inducing lucid dreams . WBTB is probably the most widely used lucid dreaming technique among both beginners and experts . source Luciddreamleaf . com