Math

Math (Ludens, Iceborn, Visage, Zhonyas, Rabadons)
PBE Sylas:
90 + 75 + 120 + 50 (Conq) + 60 (Transcendence) + 50 (Potion) = 445x1.4 (Rabadons) = 623 AP
(300 + 623*1.2)*1.3 = 1361.88 Heal
1361.88/4.8 = 283.725 HP/s
283.725 * 0.6 = 170 HP/s
AA = 1.1*112 + 0.2*623 = 247.8
Q = 320 + 623 = 943
W = 265 + 0.85*623 = 794.55
E2 = 280 + 623 = 903
Q + AA = 943 + 247.8 = 1190.8/3.6  = 330.78 Dps
W + AA = 794.55 + 247.8 = 1042.35/4.8 = 217.08 Dps
E1 + AA + E2 + AA = 0 = 247.8*2 +903 = 1398.6/6 = 233.1 Dps
330.78 + 217.08 + 233.1 = 780.96 Dps
VSing a 150 MR opponent = 100/(100+150) = 0.4 dmg modifier
0.4*780.96 = 312.38 Dps
0.15*312 = 46.9*0.6 = 28.1
Total HP/s = 170 + 28 = 198 HP/s

Release Sylas:
W heal = (190 + 623*0.35)*2 = 816*1.3 (visage) = 1060.93 HP
1060.93/7.2 = 147.35*0.6 = 88.4 HP/s
E shield = 180 + 623*0.9 = 740.7 HP
740.7/6 = 123.45 HP/s
Total Effective HP/s = 88.4 + 123.45 = 212 HP/s

Mundo HP (Sunfire + Warmogs + Gargoyles + Visage + Thornmail):
425 + 800 + 450 + 250 = 1925 = 1925 + 2095 = 4020 HP
Mundo ult costs 25% current HP. Assuming he uses it at around 50% hp, it takes: 4020 * 12.5 = -502 HP
-502/12 (duration of ult) = -41HP/s
0.0833*4020*1.3 = 435.5 HP/s
435.5*0.6 = 261 HP/s
261-41 = 220 HP/s