Mana Echoes (ONS-218) - Onslaught
NOT LEGAL
StandardNOT LEGAL
FutureNOT LEGAL
HistoricNOT LEGAL
TimelessNOT LEGAL
GladiatorNOT LEGAL
PioneerNOT LEGAL
ExplorerNOT LEGAL
ModernLEGAL
LegacyNOT LEGAL
PauperLEGAL
VintageNOT LEGAL
PennyLEGAL
CommanderLEGAL
OathbreakerNOT LEGAL
StandardbrawlNOT LEGAL
BrawlNOT LEGAL
AlchemyNOT LEGAL
Pauper CommanderLEGAL
DuelNOT LEGAL
OldschoolLEGAL
PremodernLEGAL
PredhWhenever a creature enters, you may add an amount of 
equal to the number of creatures you control that share a creature type with it.
equal to the number of creatures you control that share a creature type with it.