Awesome Monday

Sunburst (This enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.)

Flying {U}, Sacrifice Wizard Replica: Counter target spell unless its controller pays {2}.

{2}: Sarcomite Myr gains flying until end of turn. {2}, Sacrifice Sarcomite Myr: Draw a card.

(Ancient Den isn't a spell.) {T}: Add {W}.

Boros Garrison enters the battlefield tapped. When Boros Garrison enters the battlefield, return a land you control to its owner's hand. {T}: Add {...

{2}, {T}: Add {B} for each Swamp you control.

{T}: Add {R}.

Gruul Turf enters the battlefield tapped. When Gruul Turf enters the battlefield, return a land you control to its owner's hand. {T}: Add {R}{G}.

({T}: Add {B}.) Leechridden Swamp enters the battlefield tapped. {B}, {T}: Each opponent loses 1 life. Activate this ability only if you control tw...

(Seat of the Synod isn't a spell.) {T}: Add {U}.

Shivan Oasis enters the battlefield tapped. {T}: Add {R} or {G}.

{T}: Add {C}. {2}{R}{W}, {T}: Target creature gains double strike until end of turn.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

Draw three cards. Then discard two cards unless you discard an artifact card.

(Tree of Tales isn't a spell.) {T}: Add {G}.

(Vault of Whispers isn't a spell.) {T}: Add {B}.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)