Whenever a Spider you control enters, draw a card. This ability triggers only once each turn.
Mary Jane Watson anchors a GW Spider tribal deck that floods the board with arachnids while drawing an extra card each turn one enters. You curve out cheap Spiders, deploy token-makers and anthems, and grind incremental card advantage into a wide, reach-heavy board that out-values and overwhelms opponents.
Steady, free card advantage in colors that historically struggle to draw
Cheap commander (MV 2) that comes down early and immediately enables value
Spiders bring built-in reach to play defense and block fliers
GW offers excellent token, anthem, and go-wide support
Real Spider tribal is shallow, so you lean on token-makers and changelings to fuel the trigger
Draw is capped to once per turn, limiting explosive card flow
No evasion or built-in protection makes the board vulnerable to wraths
GW lacks interaction for combo and fast non-creature threats