mtg cards with suspend Suspended Sentence the player plays it without paying its mana cost Suspended Sentence (Extended Art) -

Green Uncommons Berserk $100/$60 Ice Storm $40/$20 Regrowth $40/$20 Channel $20/$10 Hurricane $12/$6 Instill Energy $10/$5 Camouflage $8/Unlisted Lure $6/Unlisted Thicket Basilisk $6/Unlisted ALL OTHER GREEN UNCOMMONS $5/$1 Channel seems really cheap compared to this other stuff

----- You may sacrifice an artifact or creature

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When combined with untap effects, High Tide can even let you generate tons of mana to fuel a single, game-winning turn , making it one of the most degenerate MTG blue spells in the entire combo arsenal

Theyre much less common and significantly less supported than their +1/+1 counter equivalents, but they allow you to weaponize proliferate against your opponents creatures